【題目】He often does at school.Look!He is doing morning over there.

A. exercise;exercise B. exercise;exercises

C. exercises;exercises D. exercises;exercise

【答案】B

【解析】

句意：他經(jīng)常在學(xué)校做運(yùn)動(dòng)，看，他在那邊做早操呢。exercise 泛指“鍛煉”時(shí)，是不可數(shù)名詞；表示“體操”或“練習(xí)題”時(shí)，是可數(shù)名詞，故選B。

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