we have decided to ___the spring outing till next week because of the weatherA.put up B.puton C.put off D.putoutteachers should not _____their students buy many extra reference books for classes A.ask B.tell C.let D.allow

we have decided to ___the spring outing till next week because of the weatherA.put up B.puton C.put off D.putoutteachers should not _____their students buy many extra reference books for classes A.ask B.tell C.let D.allow
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

we have decided to ___the spring outing till next week because of the weatherA.put up B.puton C.put off D.putoutteachers should not _____their students buy many extra reference books for classes A.ask B.tell C.let D.allow
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

begin
由于天气的原因，我们决定下星期再开始春游

have
let
这几题有点不太对。。到底要填什么？

delay推迟
由于天气的原因，我们决定把春游推迟至下个星期
let 让
老师不应该让学生买太多的额外的参考书