题目内容

It was not until ________ that ________ to prepare his lessons.

[  ]

A.did his father come in; the boy began

B.his father came in; the boy began

C.did his father come in; did the boy begin

D.his father came in; did the boy begin

答案:B
解析:

本题是强调句,被强调部分是由until引导的时间状语从句,应该用陈述语序,故选择B或D.that后面是主句,也应用陈述语序,所以答案为B.not是否定主句的,但在强调句中,通常和until一起连用.


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