1. There are several holidays in Brazil. One is Independence Day and ________ are Children's Day and Teacher's Day.

2. Look! The attic window is broken, the ________ has probably come inside this way.

3. Mechanic: Yes, we've given it a ________ examination.

4. Sorry, I didn't mean to say this, it was a ________ of the tongue.

5. The engineer was quick to point out the technical ________ .

6. My neighbor has four kids. One of them is a boy and ________ are girls.

7. There are four girls in my apartment. Two are called Casey and Amber. ________ are Joanne and Lindsey.

8. There is a ________ in this office. Small things from my desk disappear very often.

9. There are three books in my backpack. One is a maths book and ________ is a chemistry book.

10. Customer: And what do you think is ________ with it?