词汇填空。

1. The news he gave us really u______ all of us.

2. I tried my best to c______ the little boy down by telling him a story.

3. You should not talk about things that don't c______ you.

4. My brother s______ his friends in the Pacific Hotel last night.

5. Karl Marx made London the b______ for his revolutionary work.

6. I don't understand your a______ to your new job.

7. Don't stay o______ since the weather is so cold.

8. There has been ______ (一连串) car accidents at the crossing.

9. For him, this will be an ______ (完全地) new hobby.

10. He went to ______ (荷兰) when he was eight.

11. The president will ______ (出席) the next meeting.

12. It took him a long time to ______ (痊愈) a bad cold.

两种货币通过各自对第三国的汇率而算得的汇率叫（）。

A.基本汇率

B.单一汇率

C.套算汇率

D.中间汇率