第一节 单项选择（共15小题；每小题1分，满分15分）
从每题中所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
21．Your performance in the driving test didn’t reach the required standard— ________, you failed.
A．in the end B．after all C．in other words D．at the same time
22．Cycling is highly _______ to people’s health and the environment.
A．fashionable B．beneficial C．changeable D．suitable
