题目内容

7.It's quite apuzzle(谜)to us why he did that.

分析 他为何要那样做对我们而言真的是个谜.

解答 答案:puzzle
解析:根据括号内所给中文提示可知,本题考查puzzle"谜"一词;由于横线前面有不定冠词a,故直接使用所填词的原形即可.

点评 本题考查单词填空,做此类题目时一定要根据所给中英文提示确定所填词,并根据句意及其它要求判断所填词形式是否需要改变.

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