3. 1. bottles
2. boxes
3bags
4. cans
Условные предложения :
1. If I don't play tennis I will stay at home .
2. If I stay at home I will be bored .
3. If I am bored I will phone my friend.
4. If my friend is at home he will come to my house .
5. If he comes to my house we will (shall ) play tennis on the computer.
4.
1. Some of my friends will go to university.
2. The 2012 Olympics will not be in Sochi .
3. People will not live on other planets in 2020.
4. We will do exams in June .
5. Canada will not win the next World Cup .
6. Everyone will grow old some day .