Bring the flowers into a warm room ________ they"ll soon open. [ ]A. or B.

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Bring the flowers into a warm room ________ they"ll soon open. [     ]
A. or
B. and
C. but
D. for

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举一反三

________ all of them are strong candidates, only one will be chosen for the post.[     ]
A. Since
B. While
C. If
D. As

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________ volleyball is her main focus, she"s also great at basketball.[     ]
A. Since
B. Once
C. Unless
D. While

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One Friday,we were packing to leave for a weekend away ________ my daughter heard cries for help.[     ]
A. after
B. while
C. since
D. when

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Make full use of your time ________ you can achieve what you desire. [ ]
A. so
B. or
C. but
D. and

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She had just finished her homework ________ her mother asked her to practise playing the piano
yesterday.[     ]
A. when
B. while
C. after
D. since

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