Last week I wrote to the hotel to book a room,but they _____ yet.

题目

Last week I wrote to the hotel to book a room,but they _____ yet.
LastweekIwrotetothehoteltobook a room,but they _____ yet.
A.didn't answer
B.wasn't answering
C.hadn't answered
D.haven't answered
yet不是要用完成时态么,为什么答案选A呢?

答案

yet是副词 可以和连词but 连用
but yet 然而、可是
这里强调的是动作 故用一般过去时
其实 yet 可以用在 不同的时态中 无论肯定和否定.
如 he will win yet.他还会赢.