you study harder, you'll never pass the final exam. [ ]A. If B. As C. Unless D.——青夏教育精英家教网——

_______ you study harder, you'll never pass the final exam.

A. If
B. As
C. Unless
D. Until

—Do you enjoy your life here?
—Yes,______I'm very busy sometimes.

A. when
B. because
C. though
D. if

Yesterday it was raining very heavily all day, _____ I stay in.

A. because
B. so
C. although
D. but

Nearly two weeks passed _________ I received my father’s letter.

A. before
B. while
C. until
D. as soon as

His mother will tell him to do his homework _______ he gets home.

A. as early as
B. as quickly as
C. as soon as
D. as fast as

He knew nothing about it _____ I told him.

A. since
B. because
C. until
D. after

Xiao Li has worked here_____ he came here.

A. when
B. before
C. since
D. while

Peter likes reading a newspaper _____ he is having breakfast.

A. until
B. while
C. because
D. though

It is known to all that you exercise regularly, you won’t stay in good health.

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

We didn't enjoy the day ______ the weather was so awful.

A. until
B. because
C. unless
D. even though

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