tìm và sửa lỗi sai
1 these windows are very clean dirty because we clean them
2 do you know what was she doing at this time yesterday?
3 i don not know where is he staying now
4 the mother asked her what did she want for her birthday
5 i wanted to know how far is it from here to there
1 bỏ từ dirty
2 doing thành did
3 know now (bỏ now ở cuối)
4 giữ nguyên
5 giữ nguyên
1. dirty ⇒ X
2. was she doing ⇒ she was doing
3. is he staying ⇒ he is staying
4. did she want ⇒ she wanted
5. how far is it ⇒ how far