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9． Scientists _________know a lot．A． are suppo

2022-08-06 08:30:56 问答库阅读 177 次

问题详情

9． Scientists _________know a lot．
A． are supposed to
B． suppose to
C． are supposing to
D． supposed

正确答案：A
9．A【解析】be supposed to do sth.意为“应该做某事”。