I gave the book to Tom _____ I saw him.A.once B.while C.if D.the moment

分类: 作业答案 • 2021-12-03 12:44:32

问题描述：

I gave the book to Tom _____ I saw him.A.once B.while C.if D.the moment
选D为何不选A

答

选D 意思是说我看到他的时候就把书给他而once则有一次或曾经的意思,用在句子中不合适后面的the moment i saw him 是状语从句引导词用the moment