用括号内动词的正确形式填空.
1. My father is very busy. He _____ (go) to work early every morning.
2. Doctors often tell us _____ (drink) more water every day.
3. —Where is Jim now?
—He _____ ( water) some flowers in the garden.
4. Chinese writing brushes _____ ( make) of bamboo and animal's hair.
5. —What's your plan for the coming holiday?
—I _____ (visit) Beijing if possible.
6. A big ship for another country _____ (produce) in Dalian last year.
7. Mr. Green is an engineer. He _____ (work) in China for about two years.
8. They _____ (talk)about the TV play when I came into the room yesterday.
9. The medicine must _____ (keep) away from children.
10. Jack _____ (begin) to write a book a bout his journey two weeks ago outside.