Inthepast,Ioftenwroteletterstomyfriends.Butnowwekeepint...
問題詳情：
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
問題詳情：
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
