3. Make the sentences negative and interrogative.1) Jack finishes his word at six o'clock in the evening.2) You enjoy skating in winter.3) His parents spend most of the weekends in the cottage house.4) Sheila often exhibitx her pictures.5) I always discuss my problems with my friend.6) Ron and Mark take part in different research projects.7) This train arrives in the morning.8) Students pass their final exams in summer.9) The festival takes place every autumn.10) Vegetables contain many vitamins.

1) Jack doesn't finish his work at six o'clock in the evening.

Does Jack finish his work at six o'clock in the evening?

2) You don't enjoy skating in winter.

Do you enjoy skating in winter?

3) His parents don't spend most of the weekends in the cottage house.

Do his parents spend most of the weekends in the cottage house?

4) Sheila doesn't often exhibit her picture.

Does Sheila often exhibit her picture?

5) I don't always discuss my problems with my friend.

Do you always discuss your problems with your friend?

6) Ron and Mark don't take part in different research projects.

Do Ron and Mark take part in different research projects?

7) This train doesn't arrive in the morning.

Does this train arrive in the morning?

8) Students don't pass their final exams in summer.

Do students pass their final exams in summer?

9) The festival doesn't take place every autumn.

Does the festival take place every autumn?

10) Vegetables don't contain many vitamins.

Do vegetables contain many vitamins?