问题
填空题
用所给词的正确形式填空。
1. The little boy fell off the tree and _____ (hurt) himself seriously.
2. She died after a long _____ (ill).
3. Doing eye exercises _____ ( be) good for your eyes.
4. Reading _____ (make)me happy.
5.There are many _____ (different)between the countryside and the big city.
答案
1. hurt 2. illness 3. is 4. makes 5. differences
废水未经净化就直接排入河中，长此以往，就形成了今天这种两岸草木枯萎、河中鱼虾灭绝的状况。