1 . Sharing is a reaction to our increasing need for goods and services ______lower prices but still of good quality.

A．for

B．at

C．by

D．through

2 . Runners were straining to run as fast as they could, while trying not to drop their batons ________ the change.

A．over

B．in

C．at

D．for

3 . 汉译英
1. 向某人道歉 ________
2. 联合国 ________
3. 目标是……________
4. 纪念……的重要性 ________
5. 加深人们对……的理解 ________
6. 处于国际标准 ________
7. 由于某事向某……道歉 ________
8. 忙于某事 ________
9. 焦虑……________
10. 放下工作休息 ________

4 . I made a special card for my father________ Father’s Day this year.

A．in

B．at

C．on

D．during