Hainan is a very good island. It’s the second ________ island in China.

The number of the giant pandas in China is getting _________, but the red-crowned cranes are ___________.

—We're doing a lot to protect our environment, but it is not good enough. —So we should try______ to look after it.

--- Thomas does well in dancing. How about Bob?--- Bob is_____, I think. He once won the first prize in a dancing competition.

.I bought _______ exercise books with ________ money.