摘要：5．-Is Mr. Smith in the office? -Yes, he is in charge of the office, he must be there. A. since B. however C. whether D. for
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—Is Mr. Smith in the office?
—Yes, ________ he is in charge of the office, he should be there.
A. since
B. however
C. whether
D. for
查看习题详情和答案>>
—Is Mr. Smith in the office?
—Yes, ________ he is in charge of the office, he should be there.
A. since
B. however
C. whether
D. for
查看习题详情和答案>>
--- Is Mr. Smith in the office?
--- Yes，_____ he is in charge of the office，he must be there.
A. however B. since C. whether D. for
查看习题详情和答案>>