9. I’m going　　　 　(hike) in the mountains.

8. I often go to my　　　　 (cousin) house.

7. My mother is　　　　　 (babysit) the baby.

6. Can you find the ten________(different)between the two boys?

5. What______you______(do) this weekend?

4. It's easy to stay________(health).　

3. Mr Chen is often________(stress) out.

2. The old man has a serious________(ill).

1. I think everyone has two________(foot).

20. I know there are many people there________ speak English.

A. what　 B. who　 C. whose　 D. where