1. How long is it since he left school?
 => When did he leave school?
2. We can't afford to buy the car. 
=>  The car is too expensive for us to buy.
3. We arrived too late to see the film.
=> We didn't early enough to see the film.
4. If you don't rest yourself,  you will be ill.
=>  Unless you rest yourself, you will be ill.
5. Nam has never spoken to a foreigner before.
=> It is the first time Nam has spoken to a foreigner.
6. What is the weight of your suitcase?
=> How heavy is your suitcase?
7. My house is bigger than yours.
=> Your house isn't as big as mine.
8. My father cleans the car every week.
=> The car is cleaned by father every week.
9. " Do you know to speak English?" He ask me
=> He ask me if I knew to speak English?

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