![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
1. Our teacher always ....(courage) us to work hard
2. The scouts do the ....(volunteer) work
3. Nowdays, scouting is popular ....(world)
4. By recycling we can save ...(nature) resources.
2. The scouts do the ....(volunteer) work
3. Nowdays, scouting is popular ....(world)
4. By recycling we can save ...(nature) resources.