用所给词的适当形式填空
【小题1】The man _________ (wear) a sad look said,"I’ve lost my wallet."
【小题2】How __________________________(solve) the water problem will be discussed at the meeting next Monday.
【小题3】When he woke up, he found himself___________(lie) in hospital.
【小题4】The room with the windows______(face)north needs______ (clean).
【小题5】—How do you deal with the problem?
—The key to_________(solve) the problem is to meet the demand _______ (make) by the customers.
【小题6】We found that the room was empty except for a cupboard____________(stand) in one comer.
【小题7】The teacher asked us not to leave the water______(run) when we left the lab.
【小题8】The big earthquake hit the area several days ago,_______(cause) the deaths of some people.
【小题9】____ (blame) for the terrible accident,the driver felt angry and claimed to be innocent.
【小题10】______ (collect) enough information about the experiment is quite necessary to make sure that data is correct.