Complete the following sentences with an appropriateform of the word in brackets.
1. There are four ................................. in my house. bookshelf
2. The photocopy is between the ................................. and the drugstore. bake
3. Is your brother an .................................? act
4. Mai’s sister is a ................................. sing
5. We must be ................................. when we cross the road. care
6. This tree has a lot of green ................................. leaf
7. Is your father a .................................? business
8. I’m Vietnamese. What’s your .................................? nation
9. Air ................................. is a big problem in many cities in the world. pollute
10. Yoko is from Japan. She is ................................. Japan