第一节 单项填空（共15小题；每小题1分,满分15分）
21. This is ______ most important examination for me, which will hopefully give me ______ new
start of life.
A. a; / B. a; the C. the; the D. a; a
22. I’m considering buying a new car, because my old car ______ a lot.
A. breaks into pieces B. breaks down C. breaks into D. breaks up
