Ответ:

1. I have to sell the car one of these days. It keeps breaking down.

2. You mustn`t shout at children.

3. The bell had gone and I have to answer the question.

4. “You mustn`t cross the road alone” – the mother said to the child.

5. The guide had to meet the group and take them to the hotel yesterday.

6. The children didn’t understand the rule and the teacher had to explain it again.

7. The babysitter was ill and Ellen haв to look after the child herself.

8. I had to take the umbrella because the forecast was bad.

9. Susan says I have to drive her to the station. She thinks it’s my duty.

10. I didn’t know I had to work extra hours. We hadn’t agreed on that.

11. “When must I return the book? – Steve asked the librarian.

12. I had to interrupt the speaker because I didn’t get the point.

13. I know I have to do the work myself. It’s my duty.

14. As we had agreed I had to meet him at 7.

Объяснение: