—Could I borrow your dictionary?
—Yes，of course you ________.
A．couldB．willC．canD．might
C

本題中的could也表示請求(而非表示過去時)，語氣委婉，主要用于疑問句，不可用于肯定句，答語應(yīng)該用can(即could不能用于現(xiàn)在時態(tài)的簡略答語中)。
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