Đáp án:

1. We aren't 10 years old. we don't study in grade 6.

2. Her brother doesn't often watch tv after meals

3. I always go jogging with my sister.

4. Mai doesn't usually reads books in the library after school.

Phân tích:

- Khi chuyển sang câu phủ định, ta thêm từ ‘not’ vào sau trợ động từ ( do, does, did,..) -> động từ giữ nguyên.

`1)` We are 10 years old. we study in grabe 6

`to` We aren't 10 years old. we study in grabe 6

`2)` her brother often watches tv after meals

`to` Her brother doesn't often watch tv after meals.

`3)` I never go jogging with my sister.

`to` I always go jogging with my sister.

`4)` mai usually reads books in the library after school.

`to` Mai doesn't usually reads books in the library after school.

`@` Cấu trúc:

`-` S + don/ doesn't + not + V + O

`#Ph`