题目内容
Mr. Smith would have come to see you if it had been possible, but he ________ so busy.
A. was B. had been C. has been D. were
D
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优生乐园系列答案新编小学单元自测题系列答案题目内容
Mr. Smith would have come to see you if it had been possible, but he ________ so busy.
A. was B. had been C. has been D. were
D
优生乐园系列答案新编小学单元自测题系列答案