動詞時態(tài)和語態(tài)精講精煉14535.Over the past 30 years，China significant changes in comprehensive national strengththanks to the reform and opening-up policy.A. witnessed B. were witnessingC. has witnessed D. will have witnessed答案 C536.- Ring me at six tomorrow morning, will you?- Why that early? I _ .A. will be sleepingB. have slept C. have been sleepingD. will sleep答案 A537.Is Tom still smoking? No. By next Saturday he _ for a whole month without smoking a single cigarette.A. will go B. will have gone C. goes D. has been going答案 B538.-Would you like to join us in playing the game?-Im sorry, but my homework _ by now.A. hasnt finished B. hasnt been finishedC. isnt finished D. wont be finished答案 B539.The snow has come down so heavily at times; it _ rescuers from searching for missingpeople.A. is delayingB. has delayedC. had delayed D. will delay答案 B540.The father, along with his four children _ Hangzhou. When they will be back _fixed.A. have gone to, isnt B. had gone to, is notC. went to, arent D. has gone to, has not been答案 D541.When I arrived at the theater, the first singer _ and the audience _ .A. had finished singing ; were clapping.B. had finished singing ; had clapped.C. finished speaking ; clapped.D. finished singing ; were clapping.答案 A542.Since I won the big prize, my telephone hasnt stopped ringing. People _ to askhow I am going to spend the money.A. are phoning B. phone C. will phone D. had phoned答案 A543.-Remember the first time we_ , Ed ?-Of course, I do. You _ a song on the stage.A. have met; sang B. met; sangC. met; were singing D. have met; have sung答案 C544.He works in a company now. He _ for 25 years in a factory.A. worked B. had worked C. has worked D. works.答案 A545.- Can I take my car now?- Oh, sorry. It _and wont be ready for two hours.A. has been repairedB. was repairedC. is being repairedD. has repaired答案 C546.We _ there when it _ to rain.A. would get; began B. were getting; would beginC. were about to get; began D. had got; had begun答案 C547.My roommate Lucy _, but when I came in, she stopped.A. was phoning B. phoned C. had phoned D. is about to phone答案 A548.With home schooling growing quickly in the United States, nobody knows exactly howmany American children at home.Awill teachBtaughtCare being taughtDare teaching答案 C549.Do you think Li Chen could do well in the job?Im afraid that it _several months _he is fit for the job.A. is; when B. will be; before C. will be; after D. was; before答案 B550.Since she left home, I have been worried about her and _ well at all.A. was sleeping B. wasnt sleepingC. havent been sleeping D. have been sleeping答案 C551.- Whats wrong with your coat?- Just now when I wanted to get off the bus, the man next to me _ on it.A. sat B. had sat C. had been sitting D. was sitting答案 D552.You speak very good French!Thanks. I French in Sichuan University for four years.A. studied B. study C. was studying D. had studied答案 A553.A survey _ in 2002 by the Computer Security Institute, a private organization in theUSA, showed that 90 percent of the 503 biggest companies and government departmentsquestioned _ their security systems _ into in the previous year.A. conducted ; had ; broke B. conducted; had had ; brokenC. was conducted ; had had ; broken D. to be conducted; had ; broke答案 B554.With more forests being destroyed, huge quantities of good earth _ each year.A. is washing away B. is being washed awayC. are washing away D. are being washed away答案 D555.- Look at these black clouds . It _ soon- Sure. If only we _ out.A .is raining, didnt come B. is to rain, wont start.C. will rain, havent started D. is going to rain, hadnt come答案 D556.-Do you know our town at all?-No, this is the first time I _ here.A. have come B. was C. came D. am coming答案 A557.What he says and what he does_A. is not agreed. B. are not agreed C. doesnt agree D. dont agree答案 D558.Unluckily, when I dropped in , Dr. Smith _, so we only had time for a few words.A. was just leaving B. has just left C. had just left D. just left答案 A559.The boy insisted that he the money and he at once.A. not steal; be set free B. hadn't stolen; be set freeC. didn't steal; should be set free D. hadn't stolen; set free答案 B560.-Have you heard that Tom, along with his parents, _ to Japan?- Really? No wonder I havent seen him these days.A. has been B. have been C. has gone D. have gone答案 C561.As your spoken English gets better, so_ your written English.A. will   B. does   C. is    D. has答案 A562.-Tom, you didnt come to the party last night?-I _, but I suddenly remembered I had homework to do.A. had to B. didnt C. was going to D. wouldnt答案 C563.They are good friends and they _ many happiness and sorrows together.A. had lived through B. live throughC. lived through D. have lived through答案 D564.The crazy fans patiently for two hours, and they would wait till YaoMing, the basketball star, arrived.A. were waitingB. had been waitingC. had waited D. would wait答案 B565.My money _. Id better go to the bank to draw some in case I _ none in hand.A. has run out; will have B. is running out; haveC. has been run out of; will have D. is running out of; have答案 B566.Excuse me, I wonder if you can help. I _ my ID card.But where did you lose it?A. have lost B. lost C. had lost D. lose答案 A567.Mary went to the box office at lunch time, but all the tickets _ out.A. have soldB. would sellC. was sellingD. had sold答案 D568.-Has your former classmate come from America?-Yes, he _ there for eight years.A. have stayed B. stay C. stayed D. had stayed答案 C569.From Mr. Ma, I know that Mrs. Hu _ English for many years and _ rich in teaching experience.A. has taught; is B. has taught; was C. teaches; is D. was teaching; was答案 A570.The problem so severe that all Internet users are affected by it either directly or indirectly.A. becomes B. has becomeC. had become D. is becoming答案 B572.-Why does the river smell terrible?-Because large quantities of water_Ahave polluted Bis being pollutedChas been polluted Dhave been polluted答案 D573.The company _ a rise in salary for ages but nothing has happened yet.A. has been promisingB. had promisedC. promisedD. promises答案 A574.Only when the coach saw that his team _ did he feel relaxed, waiting for the last few minutes to pass.A. had won B. won C. was winning D. winning答案 C575.- Have you handed in your papers?- Yes, we have. I guess they _ now.A. have correctedB. are correctedC. are being correctedD. are correcting答案 C576.-What bad luck that we _ the football match in the last 3 minutes!   - Especially when we _ so hard in the past two months. A. had lost; trained         B. were losing; had trained  C. have lost; have trained      D. lost; have been training答案 D577.In this experiment，they are wakened several times during the night and asked to report what they Ahad just been dreaming Bhad just dreamedC are just dreaming Dhave just been dreaming答案 D578.The cause he had devoted himself to _a perfect success.A. proving B.proved C. was proved D.has been proved答案 B579.-Are you tired now? You your homework all the evening.-Actually, I havent finished it.Ahave doneBhad doneCdidDhave been doing答案 D580.-Good morning. Doctor Browns office.-Hello, this is Tom Smith. Could you please tell Doctor Brown I _? My car_ start.A.was delayed，doesnt B. will be delayed, wontC. am delayed, didnt D would delay, mustnt答案 B581. Could you lend me that book you _ me about when I telephoned you? No, I am sorry, I cant. I gave it to a friend.A. were telling B. would tell C. had told D. had been telling答案 A582.I can guess you were hurry You_ your sweater inside outA. had worn Bare wearingCwere having on Dwere dressing答案 B583.Could you meet me at the airport?Id like to，but Im afraid I a very important meeting when you return.Awill have attended Bwas attendingCam attending Dwill be attending答案 D584.- Where is mother?- She is in the kitchen. She _ the house work all morning.A. is doingB. was doingC. has doneD. has been doing答案 D