Exercise 19. Change the sentences to the negative. 1. He must do it. 2. You must wait for them. 3. He must give the dictionary to her. 4. You must read this book. 5. They must put off the meeting.

Відповідь:

1. He must not do it.
2. You must not wait for them.
3. He must not give the dictionary to her.
4. You must not read this book.
5. They must not put off the meeting.