1. When did David go to Barcelona?
-> David went to Barcelone last year for his holiday
-> Last year David went to Barcelona for his holiday
2. How long did he stay in the city centre?
-> He stayed there for 5 days ( dòng 3 )
3. How did he go to Barcelona?
-> He went by air ( dòng 2 )
4. Where did he stay?
-> He stayed in a big hotel in the centre ( dòng 2)
5. Did he take a lot of photographs?
-> Yes , he did ( took many photographs)
6. What did he buy?
-> He bought a lot of souvenirs for his friends ( a lot of souvenirs for his friends.)
Tất cả đều ở thì QKD vì có từ " Last year " ở ngay đoạn đầu
+) S+ V ed/ V2
-) S+ didn't + V
?) Did + S + V
+ yes + S + did
-) no + S + didn't