In hot summer, milk quickly turns sour ______ it is refrigerated.

试卷相关题目

• 1Success for Li Ning was _________, with its attractive designs and reasonable prices.

  A.graduated

  B.grateful

  C.guaranteed

  D.guarded

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• 2It will be quite a long time _______ she is back again, so don't be too cross with her.

  A.before

  B.since

  C.that

  D.until

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• 3He thought she was a pretty girl ______ poorly she was dressed.

  A.how

  B.as though

  C.as long as

  D.however

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• 4________ we have finished the course, we shall do more revision work.

  A.Now that

  B.For

  C.Ever since

  D.By now

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• 5All the photographs in this book, _______ stated otherwise, date from the 1970s.

  A.until

  B.once

  C.if

  D.unless

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• 6It is known to all that _______ you exercise regularly, you won't stay healthy.

  A.because

  B.unless

  C.now that

  D.in case

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• 7_______ you want to change for a single room, you'll have to wait for a while.

  A.While

  B.Although

  C.Until

  D.If

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• 8_________ my grandfather grew older, he lost interest in everything except fishing.

  A.While

  B.When

  C.As

  D.Since

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• 9This study shows that ______language may differ，the order in which young kids learn the parts of speech appears to be the same across different languages.

  A.since

  B.so

  C.while

  D.but

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• 10Tony decided to study abroad _______ he knew he would meet many difficulties.

  A.as if

  B.because

  C.unless

  D.even if

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