12. The world's population is growing fast every minute, especially in some_________ countries.

A. west　　 B. east　　　 C. more developed　　 D. less developed

11. In Australia, Christmas Day is in_________.

A. spring　　 B. summer　　 C. autumn　　　　　 D. winter

10. A lot of milk _________bad.

A. has been to　　　　 B. have been

C. has gone　　　　　 D. has gone to

9. Maths _________difficult to learn.

A. is　　　 B. are　　 C. does　　　　 D. do

8. The boy's teacher and friend _________a young doctor.

A. is　　 B. are　 　　C. want to be　 D. being

7. Everything around us _________OK.

A. are　　　　　　　 B. have been

C. is　　　　　　　　 D. has been

6. Forty kilos _________too heavy for me.

A. is　　　 B. are　　　 C. takes　　　 D. carry

5. The number of the teachers in this school _________one hundred.

A. is　　　 B. are　　　 C. has　　　 D. more than

4. This pair of trousers_________.

A. is my　 B. is mine　 C. are my　　 D. are mine

3. The Browns_________ a nice car.

A. have 　　B. wants　　 C. has　　　　 D. buys