He was last seen _________in his office at about 7:15 p.m..
| A．work | B．working | C．to work | D．worked |
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 |
Her little sister’s kite is broken. Let’s _____ and cheer______.
| A．mend up it; her up | B．fix up it; up her |
| C．fix it up; up her | D．fix it up；her up |