题目内容：
Vocabulary and StructurePlease complete the following sentences with the proper forms of the words given.
1.We need to protect her____。（private)
2.I am sorry to disappoint your_____。（expect)
3.They were driven by_____and hunger to steal.(poor)
4. The_____securities market yesterday bottomed out and began to rise.(decline)
5.Many species are in danger of_____because of our destruction of their natural habitat（. extinct)
参考答案：