Mỗi câu sau chứa 1 lỗi sai.Tìm và sửa chúng
1.I haven't cutted my hair since last June .....................
2.She has not working as a teacher for almost 5 years ............................
3.The lesson haven't started yet .....................
4.Has the cat eat yet .........................
5.I am worried that I hasn't still finished my homework yet ..................
6.I have just decidedto start working next week ..........................
7.He has been at the computer since a long time .....................