根据句意及汉语或图片提示完成单词。

1. Can you ______ (说) Chinese?

2. Betty and Lingling can ______ (踢) football.

3. Look!   That's my bike.  I like ______ (骑) to school.

4. Boys and girls,  please ______ (欢迎) Kate to our class.

5. —Are you from an ______ (国际的) school?

    —Yes,  I am.

6. My sister can ______ ( )well.  

7. There is a nice ______ ()in Lingling's bedroom.

8. —What's this?

    —It's a ______ ( ).

9. —Where is my ______ (    ),  Mum? 

    —It's behind the door.

10. —Can you play ______ (   ),  Tony?

      —No,  I can't.

下列各项组合中，能准确判断酸中毒性质严重程度和代偿情况的是（）.

A.动脉血和尿的pH值

B.动脉血pH值和HCO₃^-

C.动脉血和静脉血pH值

D.动脉血和静脉血PaCO₂

E.静脉血和尿的pH值