Running slowly for (some) three miles every day (is proved) a good (form) of (ex

游客2025-03-10 25

问题 Running slowly for (some) three miles every day (is proved) a good (form) of (exercise).

选项 A、some
B、is proved
C、form
D、exercise

答案 B

解析语态错误，应改为proves。prove(to be)sth．/adj．/that. . . “被证明…”，本身包含被动的意思，所以通常不用be proved。

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Runningslowlyforsomethreemileseverydayisprovedagoodformofexercise.