The first thing ______ we should do is to tell him the news.
A. who B. which C. that D. whom
What way can you think of ______ the mice in the room?
A. how to kill B. to kill C. killing D. killed
Yuan Longping, a great person in China, _____as “father of hybrid rice”
A. is regarded B. has regarded C. is regarding D. regards
______ the work is difficult, all the workers are keeping on working .
A. But B. Although C. And D. So
Tom often makes his brother___but yesterday he was made___ by his brother.
A. cry; to cry B. to cry; cry C. cry; cry D. to cry; to cry
— May we go home mow ?
— No, you____. You____ to go home until5 o’clock.
A. mustn’t; are allowed B. don’t have to; are supposed
C. needn’t; aren’t allowed D. can’t; aren't supposed
