1 . Where were you on holiday ?

2 . I went to Dong Xuan Market and Hoan Kiem Lake 

3 . Where did you go last summer ?

Giải thích :

Chị ko biết giải thích nên chị cho mẫu câu nhé 

1 . Where was / were + S + thời gian

2 . S + V-ed / V- bắt quy tắc + and + V-ed / V- bắt quy tắc

3 . Where + did + S + V-inf + từ của qua khứ 

`1.` Where were you on holiday?

- Wh-questions + was/were + S + ...?

`2.` I went to Dong Xuan Market and Hoan Kiem Lake.

- Thì QKD

`3. `Where did you go last summer?

- Thì QKD

- DHNB: last summer

- Did + S + V(o) + ...?