一You play the piano so well．How long have you learned it?一 ten years．( )A．InB．ByC．ForD．Since 题目和参考答案——青夏教育精英家教网——

题目内容

14．一You play the piano so well．How long have you learned it？
一 ten years．（　　）

A．

In

B．

By

C．

For

D．

Since

分析你弹钢琴弹得这么好．你已经学习钢琴多长时间了？--十年了．

解答答案：C 根据问句的疑问词"how long"，可知提问的是时间长度，应用for+一段时间来回答．in+年、月、季节等；by+时间点；for+时间段；since+过去的时间点．因为ten years是时间段，故选C．

点评本题考查时间介词的辨析．每一个时间介词都接不同的内容，平时多记忆多练习，做题时才可轻松选择出正确答案．

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