The lion is considered the king of the forest as it is a(n) ____of courage and power.

In the old days, his father was not able to earn enough money to ______ his family. 

He dived in the water and _____ to search for his girlfriend’s lost gold ring.

My uncle invited me to spend the Spring Festival with him in Shanghai, but _______ I’d prefer to go on a tour in Hainan.

Usually a meteorological observatory (气象台) _____ air quality in urban areas from one to five: excellent, fairly good, slightly polluted, poor, and dangerous.