第二部分：知识运用（共两节，45分）
第一节 单项填空（共15小题；每小题1分，共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，并在答题卡上将该项涂黑。
例：It’s so nice to hear from her again _____, we last met more than thirty years ago.
A．What’s more B．That’s to say
C．In other words D．Believe it or not
答案是D
21．This washing machine is environmentally friendly because it uses _____ water and electricity than _________ models.
A．less; older B．less; elder
C．fewer, older D．fewer; elder
22．－When do we need to pay the balance?