The money must_________help the people in trouble. A.use to B.used to C.be used D.be used to

问题描述:

The money must_________help the people in trouble. A.use to B.used to C.be used D.be used to

答案:D.
The money must(be used to ) help the people in trouble.钱必须被用来帮助有困难的人.
◇ 钱是被使用,因此动词 use 须用被动态 be used.
◇ 帮助有困难的人是使用钱的目的,因此后接动词不定式 to help 作目的状语.