用所给词的适当开式填空

 1. A cat has four _______( foot).

2. There are not any new word in the_______(nine)lesson.

3. It's important                _______(learn) the language.

4. Gina often_______(carry) the little girl after school.

5. I felt_______(tire) after a long walk.

6. Junk food is not good for you.  You should_______( eat)healthy food.

7. It's easy                _______(write) an E-mail.

8. His brother enjoys_______(drink) milk,  but he likes juice.

9. Two hours ago, she   ______(meet) her art teacher on the street.

10. You may   ______(go) there early next time.

屈光不正的预防原则（）

A.培养儿童注意阅读、书写卫生

B.注意户外活动

C.坚持作眼保健操

D.改善学习环境

E.以上都不是