1)
1.Can you swim? Yes, I can.
2.I'm sorry, I can't help you today, I'm really busy.
3.Please can you buy some milk on your way home? I can't leave the house because I'm looking after the baby.
2)
1.I have a bike. And I can ride a bike but I can't drive a car.
2.Look!It's right there! Can you see it? It's so obvious!
3.Hello, can I help you'? 'Actually, no, you can't.This restaurant is awful and we've been waiting here for half an hour. We're leaving'.
3)
1. I have a special talent, I can touch my nose with my tongue, can you?
2.Can I go to the bathroom please'? 'Yes, of course you can.
3.. I just can't manage to wake up on time, I'm always late.
1. If I didn't have a headache, I would do my work faster.
2. If my parents had more free time, we would spend a lot of time together.
3. If I travelled abroad, I would start vlogging.
4. If I were you, I would stop wasting my time on social media.
5. Unless I study harder, I won't pass my exam.
6. My friend agrees to help me when he has time.
7. If we had played better, we would have won.
8. If my parents had enough money, they would buy a new car.
9. Unless we have a ticket, they won't let us get inside.
10. If I get up early, I won't be late for school.
13. have been
14. the first time
15. hasn't arrived
Объяснение: