1. If she was studying, she would pass her exams. She should try harder.
2. If I travel by plane I get ear ache, hence I never do it.
3. I have not visited my grandparents for a long time.
4. It is difficult to understand what it is he is saying.
5. Oxford is not as big as London, it is smaller.
6. It's the first time he's ever driven a Porsche.
7. It's been a week since he has not gone to work.
8. Do you want me to carry your luggage/baggage?
9. How long has it been since you had bought that suit?
10. It's the silliest story I have ever heard.
