1. To make sure that he was at home, I called him up ____________ .

A. by chance     B. in general      C. at ease      D. in advance

2. Many students signed up for the ______ race in the sports meeting to be held next week.

A. 800-metre-long         B.800-metres-long  

C.800 meter length         D. 800 meters length

3. Most members of the committee were in favour of the suggestion; only a ________ were against it.

A. majority               B. minority                                              

C. quantity               D. amount

4. In October, the price of the ________ to Mount Tai has risen by 50 yuan.

 A. permission             B. admission                                   

C. introduction             D. instruction