8,1 mình làm theo thứ tự là cột trái trước, từ trên xuống rồi sang cột phải mỗi câu nha
2 no, she isn't
she is playing the piano
yes, she does
3 yes, he does
he is cleaning the window
yes, he is
4 no, they aren't
they are watching tv
yes, they do
8,2
2 don't
3 are
4 does
5 is - don't
6 are
7 does
8 doesn't
câu 8.3 mình làm rồi nha











