Would you please give me some advice to cut down the pollution？
I think （回收废纸是个好办法）to solve the problem．（recycle）
Do you know________ ________（发生什么）outside just now？
Don’t worry about my parents．They are both in________ ________（身体健康）．
Soon they________ ________（飞越）the high mountains and landed safely in Tibet．
She stayed at home and looked after her baby instead of s________，though she did need some clothes．
After half a year’s practice，he really made much p________in English．