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l5小题；每小题l分，满分l5分）
从A、B、C、D四个选项中，选出可以填人空白处的最佳选项，并在答题卡上将该项涂黑。
21．—Would you mind if my friend came along?
— .
A．Sorry, I don't B．Yes, go ahead
C．No, please don't D．It's fine with me
22．It is comfort for _____ patients to be close to their loved ones.
A．a, the B．/; the C．a, / D．the, the
