1, ?,Did they went to Nha Trang last month.

     -, They didn't go to Nha Trang last month.

2, ?,Did he play tennis with his father?

He didn't play tennis with his father.

3, Did lan saw you in the park last week?

Lan didn't saw you in the park las week.

4,Did we were in the countryside last summer?

We weren't in the countryside last summer.

5, Did Mrs.Robinson buy a poster?

Mrs.Robinson didn't bousht a poster.

6, Did liz enjoy her vacation in Nha Trang last year?

Liz didn't enjoy her vacation in Nha Trang last year

7,Did her aunt give her a new skirt?

Her aunt didn't give her a new skirt.

8,Did he was in class for two hours?

He didn't was in class for two hours

9,Did they watch a good football match on TV last night?

They didn't watch a good football match lastnight.

10, Did peter  send that letter to marry yesterday morning?

Peter didn't send that letter to marry yesterday morning.

11, Did jane's mother buy a new car last month.

Jane's mother didn't buy a new car last month.

12, Did we visit Halong bay three years ago?

We didn't visited Halong bay three years ago.

13,Did they left for Hai phong in 1999?

They didn't left for Hai phong in 1999

14, Did they build a new school in my village ten month ago?

They didn't build a new school in my village ten month ago.

15,

Did you borrow a lot of book in the library last weekend?

I didn't borrow a lot of book in the library last weekend.

1. They didn't go to Nha Trang last month.

Did they go to Nha trang last month?

2. He didn't play table tennis with his father.

Did he play table tennis with his father?

3. Lan didn't see you in the park last week.

Did Lan see you in the park last week?

4. We weren't in the countryside last summer.

Were you in the countryside last summer?

5. Mrs Robison didn't buy a poster.

Did Mrs Robinson buy a poster?

6. Liz didn't enjoy her vacation in Da Lat last year.

Did Liz enjoy her vacation in Da Lat last year?

7. Her aunt didn't give her a new skirt.

Did her aunt give her a new skirt?

8. He wasn't in our class 2 hours ago.

Was he in our class 2 hours ago?

9. They didn't watch a good football match on TV last night.

Did they watch a good football match on TV last night?

10. Peter didn't send that letter to Mary yesterday morning.

Did Peter send that letter to Mary yesterday morning?

11. Jane's mother didn't buy a new car last month.

Did Jane's mother buy a new car last month?

12. We didn't visit Ha Long Bay 3 years ago.

Did you visit Ha Long Bay 3 years ago?

13. They didn't leave for Hai Phong in 1999.

Did they leave for Hai Phong in 1999?

14. They didn't build a new school in my village 10 months ago.

Did they build a new school in my village 10 months ago?

15. I didn't borrow a lot of books in the library last weekend.

Did you borrow a lot of books in the library last weekend?