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Inthepast,Ioftenwroteletterstomyfriends.Butnowwekeepint...

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問題詳情:

Inthepast,Ioftenwroteletterstomyfriends.Butnowwekeepint...

In the past, I often wrote letters to my friends. But now we keep in touch _____ each other bytelephones and the Internet.

                                         

【回答】

D

知識點:介詞和介詞短語

題型:選擇題

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