题目内容

【题目】_________ we do, we must be _________.

A. However, careful B. Whatever, careful

C. However, carefully D. Whatever, carefully

【答案】B

【解析】试题分析:句意:不管你做什么,我们必须小心。Do后缺少宾语,所以前面的引导词要用whatever,指代宾语;however指代状语。must be+形容词,根据题意,故选B

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