He ______ in prison in 1989. (be) 2.He _____ in prison since 1989. (be) 3.He _____ here two years ago. (come) 4.Mr.Green ____ in New York for ten years before he came to China. (live) 5.We ____ basketball last week. (play) 6.We ____1000 words by the end of last term. (learn) 7.It seldom ____ here. (snow) 8.I____ in English. (major) 9.Light ____ faster than sound. (travel) 10.What you ____about? (think) 11.They ___ an English talk. (hear) 12.When ____ able to give us an answer? (be) 13.I ___ not in last night. (be) 14.I ___ not him for many days. (see) 15.Look what you ____. (do) 16.He ___a good deal since he came here. (learn) 17.The play ___ when we go to the theatre. (start) 18.When I woke up it ___ raining. (stop) 19.He ___ the button before we could stop him. (press) 20.He told me not to worry, the teachers ___ good care of me. (take)