1. I am going to the post office in order to send some letters.
/. My grandfather is too weak to lift the box.
3. My father allowed me to use his car.
4. The sudden noise made me jump.
5. Mary told John not to tell anyone his new address.
6. I'd rather not go to the museum.
7. Lan reminded Nam to remember to send his parents her reagrd.
8. The lesson wasn't short to learn by heart.
10. It was very stupidof her to go out without a raincoat.
10. Would you please to make me some tea?
11. I watched them getting out of the car.
12. He was the first man to reach the top of the mountain.