6. Their English teacher is from America, but ______ (we) is from England.

5. ---Who taught your brother to surf?

　 ---Nobody. He learnt all by _______ (he).

4. Help ______ (you) to some fruit, Jack.

3. ---Is that bike Miss Gao’s?

　 ---Yes, it is ______(she) . Beautiful, isn’t it?

2. Trees are planted in ______ ( we ) country every year, which makes our country more and more beautiful.

1. This is not my pencil-box. _______ ( I ) is in the bag.

20. This is ______ classroom. Where is _______?

　 A. our; them　 B. us; they　 C. our; theirs　 D. ours; theirs

19. You forgot your dictionary? You may have _______.

　 A. me　 B. my　 C. mine　 D. myself

18. ---Is there a bus to the zoo?

　 ---I’m afraid there’s _______ bus to the zoo.

　 A. no　 B. any　 C. some　 D. none

17. We decided to go for a field trip with some friends of _______.

　 A. us　 B. our　 C. ours　 D. ourselves