—I knocked over my coffee cup. It went right over _________ keyboard.

    — You shouldn't put drinks near _________ computer.

    A. the;不填      B. the;a          C. a;不填     D. a;a

 

B

【解析】keyboard表示特指, 特指雙方心目中的那個鍵盤, 所以要用定冠詞the。computer表示泛指, 所以要用不定冠詞a。

 

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