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，并在答题卡上将该选项的标号涂黑。
21．Who will take office and become president of that country has been under discussion some time now.
A．an；the B．不填；a C．the；不填 D．不填；the
22．It was an easy test and John , but he didn’t.
A．should pass B．should have passed C．must pass D．must have passed
23．I my hands so that I can help you with the cooking.
A．wash B．washed C．have washed D．was washing
