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It is third time that he______ his homework since he______ to this school
A doesn’t finish; comes      B hadn’t finished; came 
C. hasn’t finished; came    D didn’t finish; came
A应改为C。
考查句型:It is third time that后用现在完成时态,句意:自从他来到这所学校以来,这是他第三次没完成作业了。动作是从过去持续到现在,故选C。
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