题目内容
9．Look，the set of keys on the teacher's desk．（ ）| A． | are | B． | were | C． | is | D． | was |
分析 看，这串钥匙在老师的桌子上．
解答 答案：C 根据the set of keys on the teacher's desk．这串钥匙在老师的桌子上．可知，这句话的主语是the set of keys，强调的是一串钥匙，主语是单数，因此谓语动词应该用单数形式．所以排除A，B，根据Look，the set of keys…，这里应该用一般现在时态．故选：C．
点评 本题主要考查主谓一致问题．做此类题目时，要注意主语和谓语动词的一致性，平时应该注意一些常用句型，短语的用法．
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