一. 单项选择 (共15个小题；每小题1分，满分15分)
从下列各题A、B、C、D四个选项中选出可以填入空白处的正确答案。
1.----Is Mr. Franco Hollande __________ honest and capable man?
---- Yes. And that is why he was chosen ____________ president of France .
A. a ; a B. an ; \ C. the ; the D. a ; \
2. ----Jack, is maths difficult to learn in High school?
----Sure. No subject can be learned well __________hard work.
A. without B . through C. by D. with
