Mozart could play the piano _____ he was 5 years old. [ ]A. before B. aft

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Mozart could play the piano _____ he was 5 years old. [     ]
A. before
B. aftcr
C. when
D. until

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举一反三

I don"t like washing my car_______it is very dirty.        [     ]
A. so
B. because
C. but
D. although

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__ you don"t hurry up, you"ll miss the train.        [     ]
A. Until
B. Before
C. If

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________it is raining, ________he is still working outside.    [     ]
A. Although; /
B. But; although
C. /; although

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Sarah knew nothing about it _________her sister told her.        [     ]
A. because
B. if
C. unlil

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-It"s 10 o"clock. I must go now.
-It"s raining outside. Don"t leave __________ it stops.[ ]
A. when
B. since
C. while
D. until

题型：期末题难度：| 查看答案