IV.

1 . He sent a letter to his penpal last week 

Did he send a letter to his penpal last week?

2 . She taught us English last year

Did she teach you English last year?

3 . They did their homework carefully

Did they do their homework carefully?

4 . The Robinsons bought a lot of souvenirs

Did the Robinsons buy a lot of souvenirs?
5 . Tourist ate sea food at that famous restaurant 

Did tourist eat sea food at thet famous restaurant?

6 . The teacher gave her students a lot of homeworks

Did the teacher give her students a lot of homework?

1. When did he send a letter to his penpal ?
2. What subject did she teach us last year ?
3. How did they do their homework ?
6. Who did the teacher give a lot of homework ? 
8. What time did Liz go to school ?

IV. Make questions
1. When did he send a letter to his friend?
2. What did she teach you last year?
3. How did they do their homework?
4. How many souvenirs did the Robinsons buy?
5. Where did tourist ate seafood?
6. Who did the teacher give a lot of homeworks?
7. Who did his uncle took to see Cham Temple?
8. What time did Liz go to school?