a Complete with the correct form of have to ( or (21). I'll have to call back later because the line's engaged. 1 Passengers. 2 you switch off their laptops during take-off. do a lot of homework when you were at school? 2 3 My sister is a nurse, so some weeks she you ever 4 5 Saturdays are the best day of the week. I love early. E 9 61 7 In the future, people home. 8 With old mobile phones, you used to more often. get up leave a message on her voicemail because she wasn't in. go to school; they'll all study at charge the battery your boyfriend work nights. have an operation? [2] weekends? [2] 10 The exhibition was free, so I answer his work emails at pay. E

Ответ:

1. I'll have to switch off their laptops during take-off.
2. Did you have to do a lot of homework when you were at school?
3. Some weeks she has to get up early because my sister is a nurse and works nights.
4. Have you ever had to leave a message on her voicemail because she wasn't in?
5. Saturdays are the best day of the week. I love not having to go to school; we'll all study at home.
6. In the future, people won't have to charge the battery as often with old mobile phones.
7. With old mobile phones, you used to have to charge the battery more often.
8. Will you have to answer his work emails at weekends?
9. Did you have to have an operation?
10. The exhibition was free, so I didn't have to pay.