Giúp em với ạ!!!!!!!!!!!!!!!!!!!!!!!!!!! Viết lại câu sao cho nghĩa không đổi: 1. It would be a good idea to stop drinking coffee (up) It would be a good idea ............................................ Coffee 2. Ruth's party has been postponed until next month (off) Ruth's party .......................................... next month 3. She checks the company accounts very effciently (effcient) She's very .................................. the company accounts 4. All the children enjoy themselves at this summer camp (fun) Every ........................................ at this summer camp