- — Jack, do you know anything about Doctor Brown?— I ______ to him for years. I don't see how anyone else could do bet...
- — Have you watched the nine o'clock news?— No. I ______ my homework at home all the morning.A. had doneB. have doneC....
- I have to see the doctor because I a lot these days.A. coughedB. am coughingC. have been coughingD. cough
- Although they __________ in love for over ten years, they haven't decided when to get married.[ ]A. have fallenB. had...
- Liu Fang ______ pipa since she was six years old.[ ]A. playedB. was playingC. had been playingD. has been playing
- — Where are Jack and Mike?— They ____ the furniture you asked for into thehouse.[ ]A. have been carryingB. carriedC. ...
- We _____ on our project day and night in the past two weeks.[ ]A. had workedB. have been workingC. will be workingD. ...
- — Do you have any news about Bob?— Yeah. We ______ each other quite a lot recently.[ ]A. have been seeingB. had been ...
- — Liu Fang, I didn't know you can play the Pipa and Guzheng so well.— Well, actually I ________ it since I was six ye...
- — Why do you want to apply for the position as a history teacher?— This is the job that I ______.[ ]A. looked forB. h...
- In the past decades, sea ice _____in the Arctic as a result of global warming.[ ]A. had meltedB. has been melting C. ...
- — What's the matter with Andy ? He doesn't look very well.— He has a headache because he ______ too long; he ought to...
- I _______ English since I was very young but still can't communicate fluently in it.[ ]A. studyB. have been studyingC...
- — Jack, do you know anything about Doctor Brown?— I _____ to him for years. I don't see how anyone else could do bett...
- — Hi, Jack!When did you arrive in Berlin?— Last weekend. I _________ a different culture since then.[ ]A. was experie...