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        1. 【題目】Extreme sports such as rock climbing can be very dangerous, so we________ be too careful.

          A.can’tB.mustn’tC.shouldn’tD.needn’t

          【答案】A

          【解析】

          句意:攀巖等極限運(yùn)動非常危險,所以我們再小心也不為過。

          考查情態(tài)動詞!can't be too+形容詞” 表示“再……也不為過/不過分”;故選A。

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