1. What time did you go to bed last night?
2. Why did she buy that dictionary?
3. Who did you send these letters to?
4. When did Lan go to Nha Trang?
5. How did she go to Nha Trang?
6. What did they see in the aquarium?
7. What did you eat for breakfast this morning?
8. Where were they last summer?
Cho xin 5s và ctrlhn nha thanks!