3. Negative form: It wasn't sunny and hot yesterday.
   Question form: Was it sunny and hot yesterday?

4. Negative form: My sister didn't try to bake a cake last weekend.
   Question form: Did my sister try to bake a cake last weekend?

5. Negative form: They didn't go to Europe on their last summer holiday.
   Question form: Did they go to Europe on their last summer holiday?

6. Negative form: John didn't have lunch at the cafeteria last Monday.
   Question form: Did John have lunch at the cafeteria last Monday?

7. Negative form: Jimmy and Jane didn't get up early yesterday morning to jog.
   Question form: Did Jimmy and Jane get up early yesterday morning to jog?

8. Negative form: She wasn't old enough to take the responsibility.
   Question form: Was she old enough to take the responsibility?

9. Negative form: He didn't buy the milk at the shop over there.
   Question form: Did he buy the milk at the shop over there?

10. Negative form: They didn't plant trees in the spaces between the houses.
    Question form: Did they plant trees in the spaces between the houses?