1. My old students sent me a gift.
2. The teacher doesn't allow you to cheat in the exam.
3. My father is fixing my table.
4. How long has Mr. Green used this fax machine?
5. The singer's fan didn't recognize him when he was ar the restaurant.
6. The judges will disqualified him from the competition if he uses drugs.
7. We will turn off all the unnecessary light to save energy.
8. Jane's mother prevented her from staying up too late.
9. Did Mr. Brown type this document?
10. The rescuers found my dead people after the earthquake.