1. What time (did/ do) you get up every morning? 2. What (do/ does) monkeys eat? 3. (Does/ Do) I write well? 4. (Does/ Did) the sun shine every day? 5. What (do/ does) we have for lunch today? 6. Did all of you enjoy the day trip? Yes, we (do/ did). 7. Do you walk to school? No, I (doesn’t/ don’t). 8. Did Sally finish her homework? No, she (don’t/ didn’t). 9. Do I look like my brother? No, you (don’t/ doesn’t). 10. Do cats chase dogs? No, they (don’t/ doesn’t). 11. When (do/ does) the teachers have their lunch? 12. Why (did/ does) you laugh at me? 13. Some birds (don’t/ doesn’t) fly. 14. My sister (doesn’t/ don’t) like tea. 15. Did Helen and Lily do this exercise in the evening? No, they (doesn’t/ didn’t).

- Hiện tại đơn :

$\text{( ? ) Nghi vấn : Do/Does + S + V-inf +...}$

- Quá khứ đơn :

$\text{( ? ) Nghi vấn : Did + S + V-inf +...}$

1. $\text{do}$

every morning $\Rightarrow$ $\text{DHNB}$

2. $\text{do}$

monkeys $\Rightarrow$ $\text{DHNB}$

3. $\text{do}$

I $\Rightarrow$ $\text{DHNB}$

4. $\text{does}$

every day $\Rightarrow$ $\text{DHNB}$

5. $\text{do}$

we $\Rightarrow$ $\text{DHNB}$

6. $\text{did}$

Did $\Rightarrow$ $\text{DHNB}$

7. $\text{don't}$

Do $\Rightarrow$ $\text{DHNB}$

8. $\text{didn't}$

Did $\Rightarrow$ $\text{DHNB}$

9. $\text{don't}$

Do $\Rightarrow$ $\text{DHNB}$

10. $\text{don't}$

Do cats...$\Rightarrow$ $\text{DHNB}$

11. $\text{do}$

the teachers $\Rightarrow$ $\text{DHNB}$

12. $\text{did}$

Vì $\text{you}$ là $\text{số nhiều}$ .

13. $\text{don't}$

some birds $\Rightarrow$ $\text{DHNB}$

14. $\text{doesn't}$

my sister...$\Rightarrow$ $\text{DHNB}$

15. $\text{didn't}$

Did Helen and Lily...$\Rightarrow$ $\text{DHNB}$