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.
