Computer cannot remember who _______; it simply does what _______.
A．has used it; it is toldB．will used it; it was told
C．uses it; it has toldD．has used it; it told
A
第一個(gè)空上可用現(xiàn)在完成時(shí)或一般現(xiàn)在時(shí);第二個(gè)空上則必須用兩者的被動(dòng)式。
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