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— They speak perfect English. How long have they learnt it?

— ______ they were seven years old.

A. When   B. Since   C. After   D. Until

【答案】B

【解析】试题分析:句意:-他们的英语说得非常完美,他们学了多长时间了?-自从他们7岁的时候开始。When 当……时候;Since自从;After 在……之后;Until直到……时候。根据对话的意思可知,他们自从7岁就开始学习英语了,而且How long have they learnt it使用的是现在完成时态,故应选B。

考点:考查连词。

【题型】单选题
【结束】
11

How dirty your car is! You had better _______ right now.

A. have cleaned it   B. to have cleaned it

C. have it cleaned   D. to have it cleaned

九年级英语单选题中等难度题

少年,再来一题如何?
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