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1.The most crucial issue at present is how to solve the problem of food safety.

A.necessary

B.important

C.demanding

D.urgent

2.The manager talked over the requirement of the new job with him.

A.discussed

B.mentioned

C.accepted

D.rejected

3.Peace was the dominant theme of the conference.

A.title

B.mode

C.subject

D.notion

4.The thunder scared the little girl who is sleeping in the room.

A.frightened

B.killed

C.endangered

D.rescued

5.The parents have to restrain their daughter from playing cyber games.

A.disallow

B.reduce

C.prevent

D.confine

答案：BACAC