Exercise 8.

2. Does he sometimes stay up late?

3. I always do the house with my brother.

4. Perer and Mary never come to class on time.

5. Why Johnson always get good marks?

6. Do you usually go shopping?

7. She seldom cries.

8. My father never has popcorn.

Exercise 9.

1. She doesn't sleep late on weekends. 

2. We don't believe in ghost.

3. Do you understand the question?

4. They don't work late on Fridays. 

5. Does David want some coffee?

6. She has three daughters.

7. When does she go to her Chinese class?

8. Why do I have to clean up?

Cấu trúc thì hiện tại đơn:

- Khẳng định: S + V (s/es)

- Phủ định: S + don't/doesn't + V (nguyên mẫu)

- Nghi vấn: Do/Does + S + V?

$2.$ Does he sometimes stay up late?

$3.$ I always do homework with my brother.

$4.$ never come

$5.$ Why does Johnson always get good marks?

$6.$ Do you usually go shopping?

$7.$ She seldom cries.

$8.$ My father never has popcorn.

$==================="$

$1.$ She doesn't sleep late on weekends.

$2.$ We don't believe in ghosts.

$3.$ Do you understand the lesson?

$4.$ They don't work late on Sundays. 

$5.$ Does David want some coffee?

$6.$ She has three daughters.

- S + have/ has + ...

$7.$ When does she go to the Chinese class?

$8.$ Why do I have to clean up?

- have/ has + to V

- clean up (v.): dọn sạch.

$==================="$

$1.$ has

$2.$ is

$3.$ is 

$4.$ likes

$5.$ never bites

$6.$ barks

$7.$ is

$8.$ doesn't like

$9.$ becomes

$10.$ just sleeps

$11.$ plays

$12.$ are

$13.$ doesn't let

$14.$ often takes

$15.$ Không thấy?

$16.$ is

$==================="$

*Thì hiện tại đơn:

VỚI ĐỘNG TỪ TOBE:

$(+)$ S + am (I) $/$ is (He, She, It, Danh từ số ít) $/$ are (You, We, They, Danh từ số nhiều) + $...$

$(-)$ S + am (I) $/$ is (He, She, It, Danh từ số ít) $/$ are (You, We, They, Danh từ số nhiều) + not + $...$

$(?)$ Am (I) $/$ Is (He, She, It, Danh từ số ít) $/$ Are (You, We, They, Danh từ số nhiều) + $S$ + $?$

VỚI ĐỘNG TỪ THƯỜNG:

$(+)$ S + V (s/es).

   + I, You, We, They, Danh từ số nhiều: giữ nguyên động từ.

   + He, She, It, Danh từ số ít: Thêm "s" hoặc "es" sau động từ.

$(-)$ S + do/ does + not + V (Bare).

$(?)$ Do/ Does + S + V (Bare)?