we have decided to ---the spring outing till next week becau

问题描述：

we have decided to ___the spring outing till next week because of the weather
A.put up B.puton C.put off D.putout
teachers should not _____their students buy many extra reference books for classes
A.ask B.tell C.let D.allow
1个回答 分类：综合 2014-10-09

问题解答：

我来补答
C,推迟,延后的意思
C,ABD三项构成的词组均要求是用“ask/tell/allow sb to do sth”,这里显然没有to,而C可以构成let sb do sth,故选C
 
 
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