He has been the computer for two hours, chatting with a boy from Australia.A. inB. onC. at

发布时间：2020-08-17 08:09:31

He has been      the puter for two hours, chatting with a boy from Australia.
A. in
B. on
C. at
D. by

网友回答

A. in
B. on
C. at
D. by
解析：考查固定搭配。句意 他呆在电脑旁两个小时了，与一个来自澳大利亚的男孩聊天。Be at the puter 在电脑上，表示状态，后面有for two hours，所以选C项。          
考点 : 考查固定搭配
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