题目内容
【题目】Most of them are about the last day of the world, and they kept for ways to escape from the disaster.
A.worry; look
B.worried; looking
C.worry; looking
【答案】B
【解析】be worried about意为“为……感到担忧”。keep doing sth. 意为“持续做某事”。句意:他们中的绝大部分担心世界末日,他们一直在寻找办法逃过这次灾难。故选B。
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