I my new mobile phone for several weeks,however.I'm still not familiar with all of its functions．( )A．have been usingB．had been usingC．usedD．had used 题目和参考答案——青夏教育精英家教网——

题目内容

5．I __________my new mobile phone for several weeks；however，I'm still not familiar with all of its functions．（　　）

A．

have been using

B．

had been using

C．

used

D．

had used

分析我使用我的新手机几周了；然而，我还是不熟悉它所有的功能．

解答答案：A 考查时态辨析．根据下文"我还是不熟悉它所有的功能"，表示一直使用到了现在，要用现在完成时行时态．B项是过云完成进行时态，本题中并没有表示过去的时间；C项是一般过去时态，同样没有表示过去的时间；D项是过去完成时态，同样没有表示过去的时间．

点评解答此类问题要了解各种时态的基本含义，并区别各种时态之意的差异，了解某些时态在特定的时间上的用法，然后结合语境选择正确答案．

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