第二部分：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。
21. After ______silence of several minutes, he came towards her and said, “I have struggled with my feelings , but without ______success!”
A. a; the B. the; a C. 不填; a D. a; 不填
22. If water is heated, it will _______.
A. expand B. spread C. develop D. increase
23.The war made _______ impossible for the scientist to go on with his research.
A. him B. it C. this D. that
24. The office is _______ that one, so we can have our meeting there.
A. six times bigger as B. six times as big as
C. six times big as D. six times as bigger as
25. The experts suggest _______ our army _______ modern weapons.
A. to equip; with B. equipping; with
C. to equip; for D. equipping; for
