3 Make the sentences negative and interrogative.1) Jack finishes his work 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 exhibits 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 they parents spend most of the weekends in the cottages house ?