1. The dictionary cost me fifty yuan. 　　
    I ________ the dictionary ________ fifty yuan. 　　
2. There are more people in Jinan than in Yantai. 　　
    The ________ of Jinan is ________ than that of Yantai. 　
3. She has made up her mind that she won't do that again. 　
　She has ________ ________ to do that again. 　　
4. This is the most interesting book that I have ever read. 　
　 I have ________ read ________ an interesting book before. 　
5. Nobody can answer the question. 　　
    The question ________ ________ answered by anybody. 　
6. He didn't catch the last bus, so he had to go back on foot. 　
　He had to walk back ________ he ________ the last bus. 　
7. The runner fell behind the others though he did his best. 　
　The runner did his best, ________ he still ________ to keep up with the others. 　
8. I didn't go there for the outing with them because I was ill. 　
　My illness ________ me ________ them in the outing.

A. such an      
B. so an     
C. good an      
D. a well