31. —Jane, what are you doing _________ your computer?

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31. —Jane, what are you doing _________ your computer?
—I'm looking for information _________ airlines?
A. about; for B. on; with C. in; with D. with; about
英语奥林匹克竞赛书上的,你有答案吗

答案D
(WITH)用电脑.(ABOUT)与航线有关的

31. —Jane, what are you doing _________ your computer? What are you doing?-Playing computer game What are you doing for your holiday? What are you doing?-Playing computer games.这句话对么 -What are you doing? -Playing computer games这句话对么 What are you doing with this _________（caclulator）? what are you doing 为什么不说What IS your name? what are you doing. what you are doing what are you doing What are you doing? -- what are you doing tomorrow jane -- l' ll go bike riding