【題目】Mom, I’m an 18-year-old boy. I think I’m to choose my own friends.

A. young enough B. enough young C. old enough

【答案】C

【解析】

試題分析：句意：媽媽，我是一個(gè)18歲的男孩。我足夠大了，可以選擇自己的朋友。enough副詞，足夠；修飾其他形容詞或副詞時(shí)后置。故選C。

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