In the past 30 years China ______ great advances in the socialist revolution and socialist construction.
Everybody has ______ responsibility to save water, if future generations are to enjoy _____ similar standard of living to the one we enjoy now.
______ the new life in Qingdao, the old man lived happily with his son after leaving his home in the countryside.
-- So what is the procedure? --- All the applicants ______ before a final decision is made by the authority.
If parents have children help with housework, the children will feel needed. ______, they will learn to take care of themselves.
I have no idea ______ measures the government will take to stop the river from being further polluted.