(Hãy chữa các lỗi sai) 1.I can cook when Iam six year old. 2.-must I go out for a minute,sir?-all right.Remember coming back here for five minutes. 3.-I'm doing exercises.they were difficult.would you help me now?-sorry.I was very busy then. 4.Hello everybody.my name was nam and this was my friend,tom. 5.It was sure that two plus three made five. 6.-what do you do next weeken?-we hold aparty as planned. 7.do you mind to open the windows by me? 8.you knew that the earth went around the sun,don't you? 9.we're looking for the hear from you. 10.I'd like buying for you a new present(giải gấp giùm mình nha sáng mai mình nộp rồi?????????)