第二部分英语知识运用（共两节，满分35分）
第一节语法和词汇知识（共15小题；每小题1分，满分15分）
21．—Would you mind giving your advice on how to improve our business management?
—If you make ____ most of the modern equipment, there will be ____ rise in production．
A．不填; 不填 B．the; a C．不填; a D．the; 不填
22．The education program________combining brain work with manual labor is being widely spread throughout the country.
A．to aim at B．aims at C．having aimed at D．aimed at
23．_______ the problem may be, we must solve it ourselves.
A. Whatever difficult B. How difficult C. However difficult D. No matter what difficult
24．The bus hit against a tree in the fog and________to the deep valley，with ten passengers killed and twenty wounded.
A．down did it roll B．down rolled it C．it down rolled D．down it rolled
