根据首字母提示及句意填入适当的单词。 1. I want to give money to the m_____ research. 2. What are you w_____ about these days? 3. The country offered p_____ of help to the people in Yushu in 2010. 4. He is a k_____ people. He knows a lot of things. 5. There are twenty s_____ in this library. 6. It is dangerous to swim in such a d_____ river. 7. The man offered to help but the boy r_____. 8. Who is the o_____ of the big house with a garden? 9. Luckily in the f_____ exam I got good grades. 10. I wear a suit for a job i_____.