问题

The mayor of Beijing said that allconstruction work for the Beijing Olympics _______by the year 2006 .
A:was completed
B:had been completed
C:has been completed
D:is completed
B:had been completed
C:has been completed
D:is completed
正确答案是:
同类题型
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I helped my grandparents with the housework.________ fun I had though I felt tired.
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