1.
do they?
do they?
do they?
don't they?
does she?
has he?
musn't she?
hasn't she?
weren't they?
was it?
wasn't it?
1. have been boiling
2. has been waiting
3. has been sending
4. have been trying
5. have been learning
6. has been drilling
7. has been playing
8. have been listening
9. has not been taking
10. have been saving
1. и 2. уже решены;
3. She has to answer all the phone calls at work.
4. Do you have to read all these books for the exam?
5. I have to decide which job I want before the end of the week.
6. You don't have to shout - I can hear you.
7. Has the hotel staff to sleep in the hotel?
8. We don't have to take the bus into town, We can walk.
9. She has to open the shop at 9 o'clock every morning.
10. You have to talk quietly in the library.
11. Do I have to turn right at the traffic lights to get to the hospital?
12. You don't have to explain it to me. I understand the problem.
13. We have to stop talking when the lesson starts.
14. Has your little sister to come to town with us? Yes, she does. I'm looking after her today.
15. You don't have to send the present by post. I will see him tomorrow and I can give it to him.
Объяснение:
