- — Do you know anything about the school?— Yes. In fact, this is the third time I _____ here.[ ]A. wasB. cameC. have b...
- They _____ in Shanghai since 1998.[ ]A. liveB. livedC. have livedD. had lived
- I wasn't aware of this before, but recent research _____ that eating too much fat can contribute to heart disease.[ ]...
- My father _____ away for two months. I want to do something special for him when he comes backnext week.[ ]A. will be...
- A recent survey of the opinions of experts _____ that three hours of outdoor exercise a week _____good for one's heal...
- In the past twelve months the research members _____ the effectiveness of many materials in a home building.[ ]A. had...
- — Who is Jerry Cooper?— ______? I saw you shaking hands with him at the meeting.[ ]A. Don't you meet him yetB. Hadn't...
- To their disappointment, two thirds of the milk ______ bad. [ ]A. have goneB. has goneC. were goneD. was gone
- Do tell me _____ my money![ ]A. who has taken awayB. who take awayC. has who taken awayD. has taken away
- — Do you know our town at all?— No, this is the first time I ______ here.[ ]A. has comeB. comeC. had comeD. have come
- They don't feel safe in our town at night because it _____ so dangerous. There's a robbery every week now.[ ]A. becom...
- Although the food price _____ a little bit so far, we doubt whether it will remain so.[ ]A. went downB. will go downC...
- The first decade in the 21st century _____ the rapid rise of China as a world economic power.[ ]A. witnessB. has witn...
- You really need to go out and get some fresh air and sunshine. You _____ overworked during thelast two weeks .[ ]A. h...
- — Why did you come by taxi?— My car broke down last week and I still _____ it repaired.[ ]A. didn't haveB. hadn't had...