Краткое пояснение: Вставим в предложения подходящие по смыслу вспомогательные глаголы have, has, haven't, hasn't.
- Have the students read the text? - Not yet.
- Let's make chocolate biscuits, have you got any butter, flour (мука) and sugar?
- Ann hasn't done her homework yet. She won't go for a walk with us.
- Has Jim finished his Maths test yet? - Yes, he has just finished it.
- We have already translated the sentences and learnt the poem by heart.
- What has happened? You look happy. Oh, I have got an "excellent" in Science.
- The friends haven't bought any souvenirs yet. They are going to do it tomorrow.
Ответ: 1. Have; 2. have; 3. hasn't; 4. Has, has; 5. have; 6. has, have; 7. haven't