【題目】- _______ exercising, and you'll be healthier.

A. Keep B. To keep C. Keeping D. Kept

【答案】A

【解析】

試題分析：句意：堅持鍛煉，你會更健康。“祈使句，+ and +簡單句”是一個常用句型，而祈使句通常以原形動詞開頭，所以選A。

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