I think that it is important to master a foreign language.(改

I think that it is important to master a foreign language.(改 I think that it is important to master a foreign language.(同 I think that it is important to master a foreign language.（同 英语改为简单句I think it is important to master a foreign language. 同义句转换：I think that it is important to master a foreign langu 一道初四英语题同义句转换I think that is important to master a foreign la To master a foreign language is necessary(用it is改句） I don't think it possible to master a foreign language witho It is important and necessary that one----a foreign language 急招英语超级高手,To master a foreign language is very important.可以改成 I think that it's a useful to learn a foreign-language. I don't think ( )possible to master a foreign language witho