第一节:单项填空(共15小题;每小题1分,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。
例:It
is generally considered unwise to give a child he or she wants. A. however B. whatever C. whichever D. whenever 答案是B。 |
21. It's quite obvious that the aging population in China will cause heavy pressure on whole society in the future.
A. /;the B. the;/ C. a;the D. a:a