1.I have had English lessons.

2.the teacher has put our marks into the register.

3.my friend has taken exams.

4. tanya has started school at the age of five.

5.the headmaster has explained the things clearly.

6.i have worryed about you.

7.i have HAD a meal in the canteen.

8.i have ENJOYED the nature

1.I have had english lessons.

2.The teacher has been putting our marks in the register

3.My friend has taken exams

4.Tanya has started school at the age of five

5.The headmaster has explained the things clearly

6.I have been worrying about you

7.I have had a meal in the canteen

8.I have enjoyed the nature