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．On Feb. 6, Xi’an－Zhenzhou High Speed Railway, first high-speed railway in West China, was put into operation.
A．不填; the B．the; the C．the;不填 D．不填；不填
22．The woman scientist was so busy that she could hardly time to her children.
A．spend B．devote C．share D．provide
