1. The tournament is open to both____(业余爱好者) and professionals.

2. He is an excellent ____(律师) with a good brain and a determination to achieve.

3. He's had three accidents in the past ____(两星期).

4. There is much chance that Bill will ____(复原) from his injury in time for the race.

5. Since a lot of graduates are hunting for jobs, the government should take measures to _____

(促进) employment.

6. The plane crashed, killing all 200 people____(在飞机上).

7. Who is it that has the children ____(负担) with so much homework nowadays?

8. She is always very ____(准时的) for appointments.

9. Computers and mobile phones, though they are indeed making our life easy and ____(效率高的) have reduced the need for face-to-face communication.

10. Her health has been____(下降，衰退) progressively for several months.

歼击机在进入战斗状态时要丢掉副油箱，这样做是为了 (     )

A．减小质量，使运动状态易于改变

B．减小质量，使运动状态不易改变

C．增大惯性，使运动状态易于改变

D．增大惯性，使运动状态不易改