题目内容
________Marx met Engels and they became close friends .
- A.In the 1840's
- B.During the 1840s
- C.During 1840's
- D.In 1840s
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— Is it convenient if I call you up at 9 tomorrow morning?
— I am afraid not. I _____ a group of visiting teachers then.
A.am meeting | B.will meet | C.will be meeting | D.will have met |