5. 有用的事物 something useful
4. 把废水倒入河里 pour waste into river
3. 城市面貌 the look of our cities
2. 去野餐 have a picnic/go for a picnic
1. 看到鱼儿游来游去 see fish swimming (see sb. doing sth.)
15. Her son is thirteen.
____________ ___________ is her son?(就划线部分提问)
14. This is an apple.
___________ are ___________. (改为复数句)
13. The old men often go to see Beijing Opera.
The old men __________ often ________ to see Beijing Opera.( 否定句)
12. June likes action movies.
_________ June __________ action movies?(一般疑问句)
11. What can I do for you?
______ _____ ______ _______?( 同义句)