题目

A computer can think logically and work millions and millions of times faster than a human but it _____ never replace humans because it has to ________ to work. A. may; be programmed      B. can; program     C. should; program             D. can; be programmed 答案：D 词汇运用，根据句意，写出括号内所给单词的适当形式。 They looked at our pictures, but they didn't show us ________(they)．