1. Can you tell me the way to the post office, please ?
2. How many rooms are there in your house ?
3. It is dangerous to go hiking on Mount Everest.
4. A house in the city is more expensive than a house in the country.
1. My class has 40 students.
2. Nam's sister is shorter than Nam.
3. You shouldn't stay up so late to listen to music.
4. Nam is the tallest in our class.
5. We mustn't throw rubbish into the river.