1. They haven`t passed the exam .
2. Ann has done her homework .
3. We have swum in the river.
4. My father has built a new house.
5. Children have made toys.
6. They have watered the flowers.
7. He hasn`t bought a new pencil.
8. Has Helen fed the cat ?
9. I have drunk tea with milk.
10. Bill hasn`t seen his best friend since last month.
1.They haven't passed the exam .
2. Ann has done her homework .
3. We have swum in the river.
4. My father has built a new house.
5. Children have made toys.
6.They have watered the flowers.
7.He hasn't bought a new pencil.
8.Has Helen fed the cat ?
9. I have drunk tea with milk.
10. Bill hasn't seen his best friend since last month.