摘要： This sofa used to a bed when a relative came to stay with us. A. serve as B. use for C. make into D. stand for
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This sofa used to ________ a bed when a relative came to stay with us.
A.serve as B.use for C.make into D.stand for
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This sofa used to _____ a bed when a relative came to stay with us.
[ ]
A. use for
B. make into
C. serve as
D. stand for
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B. make into
C. serve as
D. stand for