词形变化。

1. Mr. Smith and his family _______ (be) in the park now.

2. Do you go _______ (fish) at the weekends?

3. There are two              (library) in our school.

4. On the              (five) floor, there are two toilets.

5. Let              (I) have a look.

6. Would you like _______ (go) with me?

7. What             she usually              (eat) for lunch?

8.             (not look) out of the classroom.

9.Who ______ (have) a pet in your class?

10.My ball is blue.              (She) is yellow.

间接盖髓术（）

A.年轻恒牙早期急性牙髓炎

B.年轻恒牙牙髓充血

C.年轻恒牙晚期牙髓炎

D.乳牙牙髓坏死

E.年轻恒牙根尖周病