1. learning
2. But
3. Lots
4. you
5. Book 
6. Fly
7. Effort 
8. Yourself
9. playing
10. practice
IX
1. This car is too expensive for us to buy
2. By what did he stop drinking
3. Because Mai was careless, she broke the cut
4. Would you mind not smoking here
5. This is the first time I’ve eaten this kind of food
6. It is unhappy for us to get a poor mark at any subjects
7. Laura is always forgetting her homework
Be always Ving = keep Ving
8. The accident prevented him from driving faster 
Prevent sb from Ving
9. We got our house to be looked after by him when we were on business
10. I’d rather you didn’t interrupt me while I am speaking 

VIII:

1. learning
2. but
3. lots
4. you
5. book 
6. fly
7. effort 
8. yourself
9. playing
10. practice
IX:
1. This car's too expensive for us to buy.
2. By what did he stop drinking?
3. Because Mai was careless, she broke the cut.
4. Would you mind not smoking here?
5. This is the first time I’ve eaten this kind of food
6. It's unhappy for us to get a poor mark at any subjects.
7. Laura's always forgetting her homework.
8. The accident prevented him from driving faster. 
9. We got our house to be looked after by him when we were on business.
10. I’d rather you didn’t interrupt me while I am speaking.