题目内容
Tom, before you buy the expensive coat, please think about ______ you can afford it.
A. that B. when C. whether
C
解析
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----______ you ever ________ Tom before ?
---- No, I _____ him just two minutes ago.
| A.Did, know ; met | B.Have, known ; have met |
| C.Have, known; met | D.Did, know; had met |