【选择题1道】进行时与完成时的.mary is taking notes of the grammatical rules in class at XX school,where she ____ English for a year.A studies B studiedC is studyingD has been studying我想选B或者A=.

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【选择题1道】进行时与完成时的.mary is taking notes of the grammatical rules in class at XX school,where she ____ English for a year.A studies B studiedC is studyingD has been studying我想选B或者A=.
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【选择题1道】进行时与完成时的.mary is taking notes of the grammatical rules in class at XX school,where she ____ English for a year.A studies B studiedC is studyingD has been studying我想选B或者A=.
【选择题1道】进行时与完成时的.
mary is taking notes of the grammatical rules in class at XX school,where she ____ English for a year.
A studies
B studied
C is studying
D has been studying
我想选B或者A
=.

【选择题1道】进行时与完成时的.mary is taking notes of the grammatical rules in class at XX school,where she ____ English for a year.A studies B studiedC is studyingD has been studying我想选B或者A=.
for引导的时间状语用完成时

选D
for a year表示持续动作
用现在完成时表示到目前为止她还在学

请看最后for a year.
可以知道这是一种持续的状态。
所以选完成时。
而B或者A
是一般现在时 和 一般过去时。。
不能在后面接for a year.

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