【題目】-Why do you get up so early every day?

- . is good for our health.

A. Exercise; Exercising B. To exercise; Exercising

C. Exercising; Exercise D. Exercises; Exercise

【答案】B

【解析】

試題分析：句意：-為什么你每天起床那么早？--為了鍛煉。鍛煉對我們的健康有好處。動詞不定式表示目的。動名詞做主語，故選B。

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