【題目】The boy looked ______ because he didn’t pass his maths exam.

A. sad B. sadness C. saddest D. sadly

【答案】A

【解析】

試題分析：句意：這個男孩看起來很傷心，因為他沒有通過數(shù)學(xué)考試。sad傷心的，形容詞；sadness傷心，名詞；saddest最傷心的；sadly傷心地，副詞。這句話中的looked是一個系動詞，意思是看起來，后面跟形容詞做表語，故應(yīng)選A。

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