— Where is Jim?
— I have no idea, maybe he 　　　 school.
A. has been to     B. has gone to     C. goes to

-Where is Jim? I can’t find him.     -Oh, he              to Beijing.   

A.  has been to   B. has gone to    C. went        D. was to

用括号内所给动词的适当形式填空。
【小题1】The report shows that some animals can _______  (train) to work for people.
【小题2】Those dried flowers _______  (not sell) as well as the fresh ones.
【小题3】Where is Jim? I’m afraid he _______ (forget) the visit to the museum.
【小题4】The passengers were told that the plane _______ (take) off in two hours because of the bad weather.
【小题5】—It is reported the police searched the whole building yesterday but nothing unusual was found there.
—Really? I _______ (think) the thief had already been caught.
【小题6】In order to complete the task, all the club members had no choice but _____ (stay) up late.
【小题7】He failed the math exam again because the bell _______ (ring) before he finished the rest half of the testing-paper.
【小题8】Many scientists are always trying to devote themselves to _____ (study) in different areas.