Find and correct the mistake

Find and correct the mistake.

1, We did not spent our summer holiday in Dalat last year.

2, My brother  has  a three - week summer vacation last year.

3, Does Nam buy more books than Viet last week?

4, Chi  spends two hours to do her homework last year.

5, What did you bought at the souvenir store yesterday?

6. Ba is at home two days ago.

7. My brother teached me English last night.

8. Where did he went yesterday?

9.What do you and your mother watch on TV last night?

                         Mọi người giúp em với ạ!!!!!                     
                  Em cảm ơn ạ