China （win） lots of high praise since we turned the sand into forests.
Xiaoming （ usual） works as a volunteer and visits an old people's home at weekends.
Andrew is clever and hard﹣working.He often works out some problems very e .
In 1961,Yuan Longping found a natural hybrid rice plant that had many a over others.
When watching the raising of the national flag，we should stand with our backs.
A walk in the fresh air can l your mood after a stressful day's work.