I don’t know _________ the problem.
| A．how deal with | B．how to deal with |
| C．what to deal with | D．what do with |
I’ll never forget the days ______ we spent together.
| A．that | B．who | C．when | D．where |
The girl was often heard _______ happily in her room.
| A．sings | B．sing | C．singing | D．to sing |
The tall boy ______ be Mike. He has gone to New York to study.
| A．mustn’t | B．couldn’t | C．can’t | D．might |
The old men in hospital __________.
| A．take good care of | B．take good care |
| C．are taken good care | D．are taken good care of |
The park is a beautiful place that many people come here every day.
| A．so; such | B．such; so | C．such; such | D．so; so |