The flowers have faded (凋谢). They ________ have been given more water.

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• 1My pain ________obvious （明显的） the moment I walked into the room , for the first man I met asked me pitifully, “Are you feeling all right?”

  A.must be

  B.must have been

  C.could be

  D.could have been

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• 2What do you think that noise was? It ________a dog.

  A.might have been

  B.must be

  C.may

  D.might be

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• 3He ______ there by taxi but he didn't．

  A.might have gone

  B.ought have gone

  C.could have gone

  D.should go

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• 4________ she has made a right decision.

  A.I can say

  B.I may say

  C.I must say

  D.I could say

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• 5I advised him not to smoke, but he ________ listen to me.

  A.wouldn't

  B.couldn't

  C.usedn't

  D.had better not

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• 6Who ordered that all of us ________ start out at two tomorrow morning?

  A.should

  B.must

  C.have to

  D.need

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• 7________ you happen to see Mary, would you please ask her to come here?

  A.Would

  B.Could

  C.Should

  D.Might

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• 8They did what they ________ her, however, she died.

  A.could save

  B.could to save

  C.could to be saved

  D.saved

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• 9I have been writing the report for 3 hours. I ________ it half an hour ago.

  A.ought finish

  B.ought to finish

  C.ought have finished

  D.ought to have finished

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• 10In those days, the old woman ________ sit at the door for hours, waiting for her son to return from abroad.

  A.could

  B.should

  C.might

  D.would

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