词汇（注意用正确的形式填空）。

1. The old man _____ (锻炼) every morning.

2. I often _____ (购物) on weekends.

3. We must _____ (保持 ) our classroom clean.

4. There are some _____ (不同) between the two pictures.

5. He _____ (几乎不) goes to restaurant for dinner.

6. Katrina doesn't often ______ (喝) coffee, she likes green tea.

7. My eating ______ (习惯) are not very good.

8. Everyone must ______ (设法) to work hard.

（86-87题共用题干）　　女性，36岁，发现舌背红色斑块1年，病损时常变换位置，无自觉症状

患者可能有

A．舌活动受限

B．自发痛

C．圆形或椭圆形剥脱病损融合形成地图状

D．剥脱区微突起

E．发病与口内pH值有关