第一部分 英语知识运用(共两节，满分45分)
第一节 单项填空(共15小题；每小题1分，满分15分)
从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
1．He suddenly appeared on ________ rainy night, which was ________ great surprise to us.
A．a; / B．a; a C．the; a D．/; the
2．He made another wonderful discovery, ________ of great importance to science.
A．which I think is B．which I think it is
C．which I think it D．I think it is
