Kids don't learn their native language consciously, ________ they become fluent in it very fast.

A．but B．and

C．for D．so

 

A

【解析】A 考察并列連詞。句義：小孩子并沒(méi)有意識(shí)去學(xué)習(xí)自己的母語(yǔ)，但他們很快就熟練了。上下文之間存在這轉(zhuǎn)折關(guān)系。故A正確。

 

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