—Shall we visit Jim tonight ?
— Ok . To make sure that he’s in , we’d better call him up ________.
A.In exchange | B.in return |
C. in brief | D.in advance |
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—Shall we visit Jim tonight ?
— Ok . To make sure that he’s in , we’d better call him up ________.
A.In exchange | B.in return |
C. in brief | D.in advance |