1. 单词拼写(根据中文提示拼写单词)。

1. （1） I (确实) need to go now.

3. （2） Please (检查) your test paper before you hand it in.

5. （3） I'm going to find a job in that big city. Nothing can (改变) my mind.

7. （4） He is driving the car at a (速度) of 100 kilometers per hour.

9. （5） More traffic (事故) happen every year because of driving carelessly.