1. Filling in (preposition) 1. We are fond ... swimming.
2. Are you sure ... your understanding it?
3. My parents are pleased
my presenting the project at school.
4. My brother is surprised
our winning the game.
collecting coins from different
5. My best friend Sam is interested
countries of the world.
6. I am looking forward
hearing from you soon
7. Are you afraid ... studying bad.
2. I was very busy (Past Simple) on Wednesday. I wasn't very busy on Wednesday.
3. He goes (Present Simple) to school by bus. He doesn't go to school by bus.
4. My friend makes (Present Simple) many mistakes. My friend doesn't make many mistakes.
5. I finished (Past Simple) school last year. I didn't finish school last year.
6. My friend served (Past Simple) in the Army in the Far East. My friend didn't serve in the Army in the Far East.
7. His parents work (Present Simple) at the same factory. His parents don't work at the same factory.
8. The teacher answered (Past Simple) all our questions. The teacher didn't answer all our questions.
9. He is fond (Present Simple) of folk music. He isn't fond of folk music.
10. They will come (Future Simple) to see us at the weekend. They won't come to see us at the weekend.
2) Past Simple --I wasn't very busy on Wednesday.
3) Present Simple --He doesn't go to school by bus.
4) Present Simple --My friend doesn't make many mistakes.
5) Past Simple --I didn't finish school last year.
6) Past Simple --My friend didn't serve in the Army in the Far East.
7) Present Smple --His parents don't work at the same factory.
8) Past Simple --The teacher didn't answer all our questions.
9) Present Simple --He isn't fond of folk music.
10) Future Simple --They won't come to see us at the weekend.