good friend always gives you a helping hand ________ you are in trouble.[ ]A. whenB. beforeC. untilD

题目简介

good friend always gives you a helping hand ________ you are in trouble.[ ]A. whenB. beforeC. untilD

题目详情

good friend always gives you a helping hand ________ you are in trouble.
[     ]
A. when
B. before
C. until
D. though
题型:单选题难度:中档来源:同步题

答案

A

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