1, this is the first time i have seen him.

=> i have never seen him before

2, i started studying English 3 years ago.

=> i have studied English for 3 years

3, Tom didn't want to go to school because he had a temperature

=> Tom had a temperature so didn't  want to go to school

4, Jill doesn't like apples, so she doesn't eat them.

=> Jill doesn't eat apples because she doesn't like

5, Mary studies very well but she never gets high marks in the class

=>Although many studies very well, she never gets high marks in the class.

Xin CTLHN !!!!!!!!!!!

1. I have never seen him before

2. I have studied English for 3 years 

3. Tom had a temperature so he didn’t want to go to school 

4. Jill doesn’t like apples and she doesn’t eat them, either  

5. Although Mary studies very well, she never gets high marks in the class