根据短文内容，选择正确答案。

       Jim, Kate and Li Ming are doing the homework together (一起). Jim's spelling of "Moday" is wrong (错误).

Kate tells him about it. Li Ming wants to borrow (借) an eraser from Jim or Kate. Jim says he has one and gives

it to Li Ming. Li Ming thanks Jim for his help. Jim says, "You're welcome". Now Jim says "Thanks very much"

to Kate for her help. Kate says "That's all right". The three children are students in a school in Beijing. Jim is

from London. Kate is from New York. Li Ming is a Chinese girl. They are good friends. They often do

homework and play games together. They often help each other (互相).

1. Jim is _______. [ ]

A. an English girl

B. an American girl

C. an English boy

D. an American boy

2. Kate helps Jim with ________. [ ]

A. his spelling

B. an eraser

C. a ruler

D. a pencil

3. Li Ming borrows ________. [ ]

A. an eraser from Kate

B. an eraser from Jim

C. a ruler from Kate

D. a ruler from Jim

4. The three students are ________. [ ]

A. not in the same class

B. in U.K.

C. in Beijing

D. in USA

5. They are ________. [ ]

A. doing homework

B. playing games

C. reading

D. cleaning the room

穿髓孔大，龋洞内充满息肉组织的变化见于（）。

A.急性浆液性牙髓炎

B.急性化脓性牙髓炎

C.慢性增生性牙髓炎

D.慢性溃疡性牙髓炎

E.慢性闭锁性牙髓炎