Life is like riding a bicycle. your balance, you must keep moving.A．Keeping B．To keep C．Keep D．Being kept 题目和参考答案——青夏教育精英家教网—

题目内容

Life is like riding a bicycle. ________ your balance, you must keep moving.

A．Keeping B．To keep

C．Keep D．Being kept

【解析】B　句意：生活就像在骑自行车。为了保持平衡，你必须不断前进。根据句意可知此处需用不定式作目的状语，故选B项。

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