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John caught a cold on Saturday and ______ in bed ever since.

A.was
B.has been
C.is
D.have been
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科目:初中英语 来源:北京期末题 题型:单选题

John caught a cold on Saturday and ______ in bed ever since.
[     ]
A.was
B.has been
C.is
D.have been

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