Nobody can learn English well _____ you work hard on it.[ ]A. ifB. unlessC.

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Nobody can learn English well _____ you work hard on it.[ ]
A. if
B. unless
C. when
D. but

答案

举一反三

I didn"t know anything about it_______my father told me. [     ]
A. until
B. because
C. if
D. after

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Miss Zhao is very helpful. She often helps us ____we are in trouble.  [     ]
A. whether
B. although
C. whenever
D. however

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—Why do you like koala bears?
—___ they are cute and smart. [ ]
A. And
B. For
C. Because
D. so

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He wants to be an actor ___ it"s an exciting job. [     ]
A. and
B. so
C. because
D. why

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Lily is from the United Kingdom, _____she can speak French. [     ]
A. and
B. so
C. but
D. or

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