问题详情：
There are several causes leading to poor eyesight like illness, aging (老化) and poor reading 61 (habit). Televisions, computers and reading are also the causes of having poor eyesight. If you happen to work in front of the computer, 62 is good to take a break every once in a while. Dirty things can make your eyes uncomfortable. If they drop into your eyes, the best way is to clean your eyes 63 using cold water. You must also do all you can 64 (protect) your eyes from harmful things. For example, wearing sunglasses is not just for fashion 65 it can also serve as a great way to protect your eyesight from strong sunshine.
Eating healthy foods will do good to your eyesight, too. Try to eat food groups 66 contain vitamins A, C and E. And you should do eye exercises because they can protect your eyesight, too. If you exercise 67 (regular) and eat the right kinds of food, your eyes 68 (stay) in good condition for a long time.
All above are natural ways of eye care that help us keep healthy eyes. 69 (be) happy all the time can be helpful to your eyesight, too. In a word, eye care is very important, no matter 70 old you are.
【回答】
61. habits 62. it 63. by 64. to protect 65. but 66. that/which
67. regularly 68. will stay 69. Being 70. how
知识点：语法填空
题型：未分类
