第一节 单项填空 (共15小题, 满分15分)
从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。
21.
Education is a lifelong process, process
that starts long before ______ start of school, and one that should be a
necessary part of one’s entire life.
A. a, a B. a, the C. the, a D. the, the