1 . The debate between them was ____________ it was worthwhile to afford the extra expense of hiring an expensive apartment.（用适当的词填空）

3 . All the____________（suspect）were arrested yesterday afternoon. (所给词的适当形式填空)

4 . She brought her three friends to the party, none of ________I had ever met before. (用适当的词填空)

5 . Almost everywhere you go in the UK, you will be surrounded by evidence of four different groups of people who took over at different times throughout history. (英译汉)

6 . 事实证明，虚拟合唱团对许多人的生活产生了积极的影响。（prove to be）(汉译英)

7 . She was so inspired by the people she met online that she decided to start an IT club to teach older people how to use computer and the Internet. (英译汉)

8 . David ________(wander) in the street alone when someone patted him on the shoulder.（所给词的适当形式填空）

9 . 新旧更替的时代已经到来，在走向未来的过程中，我们不可能将过去的一切都保存下来。
There comes a time ________ the old must ________ ________ to the new, and it is not possible to ________ everything from our past as WC move towards the future.

10 . The old man has three sons, none of ________ is a doctor.（用适当的词填空）