单选题
A computer ______ think for itself. It must be told what to do.
[A] can't
[B] couldn't
[C] may not
[D] might not
A
B
C
D
【正确答案】
A
【答案解析】
考查情态动词。could、may和might表示的都是一种可能性,只有can表示的是能力,而本题指的电脑是不能自己思考的,因此选can't。
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