Bài 1:
1. (-) Duy doesn't live near here.
(?) Does Duy live near here?
2. (-) Mai and Lan don't walk to school.
(?) Do Mai and Lan walk to school?
3. (-) She doesn't have long hair.
(?) Does she have long hair?
4. (-) My mother isn't very king and helpful.
(?) Is your mother very king and helpful?
5. (-) I am not doing my homework now.
(?) Are you doing your homework now?
Bài 2:
1. are → is
2. buys → will buy
3. bỏ "never"
4. to litter → litter
5. at → in