57._________A.keep B.stop C.protect D.prevent

To tip a barman or barmaid, it is customary to tell him to __________.A.“Keep this to yo

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The committee system serves best to _______.A．keep the congressmen busyB．allow citizens to

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We now ______ him by writing letters.A、keep away fromB、keep onC、keep in touch with

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Measures should be taken to__________.A.keep slee

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Paragraph 5______A.Keep Your Voice Low All the Ti

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Paragraph 4______A.Keep Your Voice Low All the Ti

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Paragraph 3______A.Keep Your Voice Low All the Ti

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