题目内容
(1)The workers ________ a new hospital since the end of last year.
(2)The workers ________ a new hospital by the end of last year.
A.have built
B.have been building
C.had built
D.were building
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题目内容
(1)The workers ________ a new hospital since the end of last year.
(2)The workers ________ a new hospital by the end of last year.
A.have built
B.have been building
C.had built
D.were building
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