一、单项选择（从下列每题所给的选项中，选择一个最佳答案）（共15小题；每小题1分，满分15分）
1. —Here is_________800-word report about the Winter Olympics in Vancouver, Canada.
—It’s__________wonderful Winter Olympics I have ever watched because the Chinese players have got good results.
A. an; the most B. the; an C. an; a most D. a; the
2. About ___________of the workers in the factory were born in__________.
A. three-fifths, 1970s B. three- fifths, the 1970s
C. three- fifth, the 1970s D. three- fifth, 1970
