cho mình hỏi cái dấu "|"  ở ngoài số nguyên âm là để làm gì ạ

Ex 5: Viết lại câu hoàn chỉnh

Eg: They / wear suits to work? =>Do they wear suits to work?

1.she / not / sleep late at the weekends

=>_____________________________________

2.we / not / believe the Prime Minister

=>_____________________________________

3.you / understand the question?

 =>____________________________________

4.they / not / work late on Fridays  

=>____________________________________

5.David / want some coffee?

=>____________________________________

6.she / have three daughters

=>___________________________________

7.when / she / go to her Chinese class?

=>___________________________________

8.why / I / have to clean up?

=>____________________________________

Ex 4: Điền các trạng từ chỉ tần suất sau vào đúng vị trí

1.      We are busy on weekdays. (always)                     ->………………………………..

2.      He goes home at 6 o’clock. (usually)                    ->……………………………

3.      What time do you go home? (often)                     ->……………………………….

4.      My mother drinks coffee.  (never)                        ->……………………………….

5.      Do they go to the concerts in the evening? (sometimes)->…………………………….

6.      Does it rain in the rainy season? (often)   ->………………………………………

7.      She doesn’t play chess. (sometimes)                     ->………………………………………..

8.      He is late for class. (always)                                 ->…………………………………………

Ex 3: Cho dạng đúng của động từ trong ngoặc

       1. Nam often (do) …………………his home work.

       2. Minh (watch) ………………..television every night

       3. Would you like (play)…………. …badminton?

       4. Hoa (not have) ………. a lot of friends in Hue.

       5. The students (not go) ……………. to school on Sundays.

       6. Nam (go) …………. to the English club every Saturday

       7. Nan always (play) ……………basketball in the winter.

       8. Ba and Nam   (not be)……………….. doctors.

       9. He is tired. He’d like (sit) …………….down.             

       10. His father (not be) ………. ……….a businessman

       11. We (live) ………………in a house.

       12. Their house (have) ……………..a big yard.

       13. Nhung (live)…………………… in the country.

       14. Nam’s father (work) …………………in a factory.

       15. I (play)…………………….. football in the afternoon.

       16. She (eat)……………………… her lunch in the factory.

       17. They (go)……………………. to bed at ten?

       18. Nam and Ba (watch)……………………. television every Sunday.

       19. My sister (listen)………………… to music every day.

       20. He (brush) ……………………..his teeth in the morning.