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 we don't use plastic bags, we will save our planet.
2) If we save our planet, we will have clean air and fresh water.
3) Life will become much better if we take care of our planet.
4) If we don't protect ourselves, we will die out.
5) If we plant trees every day, we will have more fresh air.
6) The nature will become better if we take care of it.