Sare your idea with the class.Use rhe following as a model: Our new technology is... .It is for... . This technology can... .We named it... . Our technology is necessary because... .

1. How long her own bread? a) has Nell been making
2. My mum coffee for six months. b) hasn't drunk
3. the washing-up yet? b) Have you done
4. Greg much recently because he's trying to lose three kilograms.
 b) hasn't been eating
5. I'm tired. for three hours. a) I've been cooking
2. Make sentences. Use the present perfect simple or continuous.
1. the burger bar has been selling burgers since 2001.
2. the burger bar has sold three million burgers.
3. I have invented lots of different sandwiches
4. I have been inventing sandwiches for a long time
5. My grandmother has collected five hundred recipes
6. My brother has been cooking since he was five years old
7. My sister has not cooked anything / since January
8. I have never liked vegetables
9. My sister has liked prawns since she tried them in Portugal
10. Have you ever made meal for ten people?
11. Your face is white! Have you been making bread?

1. I should be delighted if I (had) such a beautiful fur-coat.
2. If it (rains), we shall have to stay at home.
3. If he (had worked) hard, he would have achieved great progress.
4. If it is not too cold, I (shall not put) on my coat.
5. I (would have written) the composition long ago if you had not disturbed me.
6. If he (didn't read) so much, he would not be so clever.
7. If my friend (is) at home, he will tell us what to do.
8. If he were not such an outstanding actor, he (would not have) so many admirers.
9. If you (give) me your address, I shall write you a letter
10. If she (were not) so absent-minded, she would be a much better student.