He has not quite solved the problem yet, but he is ______ it.A、making ofB、worki

游客2023-09-25  25

问题 He has not quite solved the problem yet, but he is ______ it.

选项 A、making of
B、working on
C、clearing up
D、trying out

答案 B

解析 本题测试的是动词词组词义的辨析。全句的意思是:“他还没有完全解决那个问题,但是正在努力。”make of意为“由……制成”;work on意为“从事于,致力于”;clear up意为“澄清,理清”;try out意为“尝试”。根据句意,应选答案B。
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