[题目]Don't lose heart.You should keep on .A. tryB. tryingC. triesD. tried 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】Don't lose heart.You should keep on .

A. tryB. tryingC. triesD. tried

【答案】B

【解析】

句意：不要灰心。你应该一直努力。根据短语keep on doing sth“一直做某事”，故此处用动名词trying。故选B。

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