题目内容

It was not until then that I came to know that the earth ________ around the sun.

A.moved
B.has moved
C.will move
D.moves

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When all those present(到场者)________ he began his lecture.

A.sit
B.set
C.seated
D.were seated

If I had had time, I would have written to you. But in fact I ________ not.

A.have
B.would have had
C. had
D. had had

Yesterday I ________ (think) that you were not in Beijing.

Alice usually ________ (sit) in the front of the classroom, but she ________ (sit) at the back this morning

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