第一部分：英语知识运用（共两节，满分30分）
第一节：单项填空（共20小题，每小题0.5分，满分10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标号涂黑。
Play, often seen as____activity for kids, is still important in development of teenagers.
A. the; the B. 
an; the C. an; 不填 D. the; 不填
— Tom seems not so enthusiastic as he was two years ago.
— Yes. He’s really reached a point in his career ______ he has to decide what to do next.
| A．that | B．when | C．where | D．which |
—Daddy, which of these smart kids do you like best in last night’s TV show?
— ________ . They are all proud and selfish.
| A．Either | B．Nothing | C．Neither | D．None |
She had wanted to go to the west part of China in search of better view. But she turned ___voluntary teacher there.
| A．a; / | B．the; / | C．the; a | D．a; the |
—Why are you crying? Today is your birthday!
—____________. I am so excited with so many friends surrounding me.
| A．Just can’t help it | B．Don’t mention it |
| C．None of your business | D．That’s all right |
Malaysia Airlines Flight 370 ___________ course and turned back toward Kuala Lumpur -- but there were no indications from the pilot that he was doing so.
| A．must have changed | B．could have changed |
| C．might have changed | D．should have changed. |