Question

(長沙市2006)

--- When did your father come back last night?

--- He didn't come back ________ he finished all the work.

[　　]

A．until

B．while

C．if

Answer 1

答案：A
解析：

解析：not... until...表示“直到……才……”，為固定搭配。句意為：你父親昨晚什么時候回來的？他直到完成所有的工作才回來。