首页 > It's difficult ______ the old people ______ walk up the Great Wall. [ ]A. for, forB. to, to C.

It's difficult the old people walk up the Great Wall. [ ]A. for, forB. to, to C.

题目简介

It's difficult ______ the old people ______ walk up the Great Wall. [ ]A. for, forB. to, to C.

题目详情

It's difficult ______ the old people ______ walk up the Great Wall.

[ ]

A. for, for
B. to, to
C. for, to
D. to, for

题型：单选题难度：中档来源：期中题

答案

C

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