_______ many children like sugar, I think they'd better try not to eat it too often.[ ]A. Becau

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• Yesterday evening I was playing the piano _______the doorbell rang.[ ]A. when B. before C. while D.
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• We won't start the meeting _____ our teacher arrives. [ ]A. though B. until C. while D. or-九年级英
• Little Kate went to school _______ it rained heavily yesterday.[ ]A. though B. if C. but D. since -九
• The sports meet will continue ______ it rains tomorrow. [ ]A. if B. as soon as C. since D. unless -九
• I was just leaving the office ______ the telephone rang. [ ]A. when B. and C. while D. before -九年级英语
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• _____ the boy was walking down the street, the UFO landed. [ ]A. Why B. Where C. While D. Whenever -
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