单项选择题

The water will be further polluted unless some measures ().

A.will be taken
B.are taken
C.were taken
D.had been taken

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单项选择题
I don't think Jill would be a good teacher. She's got () patience with children.

A.plenty
B.much
C.less
D.little
单项选择题
— Would you mind holding the door open for me, please — ().

A.Don't mention it
B.Oh, with pleasure
C.Well, that's all right
D.Thank you all the same
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