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2. She asked me how I would use English int he future.
3. I haven't spoken to her for two years.
4. If you don't work harder, you won't pass the exam.
5. The teacher asked me how many students there were in my class.
6. Nga has lived in Hanoi since she was 10.
7. I haven't talked to him for 2 months.
8. I wish I had a laptop.
9. Hoa asked Ba if he were using his pencil.
10. If you don't study hard, you'll fail the exam.
11. She said that she would be there again the following day.
12. Mary wishes she knew how to use the Internet.

II/
1. If he wants to get good grades, he must study hard.
1. She said that she didn't catch the last bus.
2. I asked her where she was going. 
4. If I see her, I will give her a gift.
4. She will be late if she doesn't hurry.
5. If he weren't lazy, he would pass the exam.
6.My mother asked me why I didn't clean my room.
7. Lan asked me if I would go to Da Lat the following week.
8. Her teacher said that she had to do homework at home.
9. If she had a lot of money, she would travel around the world.
10. The doctor asked us to drink water.
11. If he didn't have exercises, he would go out.