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It is not _____to quarrel with your boss.
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To keep a conversation flowing smoothly, it is better for the participants______.A.not to
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It is essential to follow a firm and______political line.A.continualB.constantC.consistent
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_____ is of no concern to me. A. It rains or not B. Whether it rains or not
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It is not enough only to __________ the rules of grammarif you want to learn English
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To keep a conversation flowing smoothly it is better for the participants ______.A.not to
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It is not so easy to tell the truth ______ the false.