【題目】His grandmother is well because she often ______

A. exercises B. smokes C. sleeps D. sings

【答案】A

【解析】

試題分析：句意：他奶奶很健康，因為她經(jīng)常鍛煉。根據(jù)常識，老年人保持身體健康的秘訣應(yīng)該是體育鍛煉。故選A。

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