根据句意及首字母或汉语提示完成句子。

1. A__________ you can see, he is more outgoing than his brother.

2. Can you find a w__________ to solve this problem?

3. John and Tom are b__________ from America.

4. He is good at__________（物理）.

5. He has worked in the company for 15 years. __________（然而）,he doesn't like the job.