（1）it‘s a good idea to write an e-mial to each oth

网友回答

1）it‘s a good idea to write an e-mial to each other.（改为同义句）
（ To ） （ write ）an e-mial to each other （ is ） a good idea
（2）he thinks his teacher will give him the best advice for learning english.
—————（　Who）（do）（you　）think　will　give　him　the　best　advice　for　learning　english?
（3）每天用英语会话很有帮助：it＇s　helpful　（　to　）（have　）（a　）　（conversation　）in　english　every　day