3.We are ____to climb Mount Tai.

　　4. His grandpa's _____ made him sad.

　　5.Tina has two ________ lessons every day.

　　6.We should brush our teeth ____ a day.

　　7. My grandmother is well because she ____ every day.

　　(B)用所给动词的适当形式填空。

　　8. I eat more vegetables and less meat. I think my _____________ ( eat ) habits are pretty good.

　　9. Look! Here _____________ ( be ) some money for you.

　　10. I think my healthy lifestyle helps me _____________ ( get ) good grades.

　　11. Mike with his friends _____________ ( exercise ) every day.

　　12. I think the best way _________(relax) is through exercise.

　　13. Jane is afraid of teeth ________(clean). 14. It's good for us ___________(exercise).

　　15.What kind of dance are you _______(learn)?

　　VI. 根据短文内容，用动词适当形式填空，必要时可加助动词或情态动词。

　　How many of your classmates drink cola now? Nearly everyone ___1__(drink) it. Did you

　　know that cola was a kind of medicine about 200 years ago? John S. Pemberton was a doctor

　　from America. He said to his friends, I spent many months __2__(experiment) to find a kind

　　of medicine for headaches. I _3 (mix) up different oil(油) and ingredients together and heated them

　　until I found something helpful. So far, I have succeeded already. I put the medicine into

　　bottles and begin selling it in drugstores. The people have___4___( add) water to it before__5___ (drink)

　Then, how did cola go from being a medicine to a soft drink? That came by accident. One day, a man who had a headache came into a drugstore. He asked for a bottle of cola. He wanted ___6__(take) it right away, so he asked the clerk ____7____(add) some water to the medicine while he was waiting. But there__8__(be) no hot water at the drugstore. The clerk suggested using soda water instead. The man agreed. After drinking it, the man said it tasted wonderful. From then on, it