题目内容

______ the speaker can’t come, we’ll have to cancel the meeting.

A. Since
B. Until
C. Although
D. But

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You can go out ______ you promise to be back before 11 o’clock.

A. because
B. as long as
C. though
D. while

I watched him ______ he disappeared from sight in the distance.

A. unless
B. until
C. as
D. when

His diligence was ______ he made great progress.

A. so that
B. such that
C. in order that
D. so as that

______ he entered the university, his English has been much improved.

A. Before
B. After
C. When
D. Since

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