单词拼。

1. He is moody and________(变化莫测的).

2. She________(暗示) her willingness with a nod of her head.

3. It's his nature to be________(慷慨的).

4. Those scientists are________(探索) all possible ways to solve the problem.

5. A man who can think will always have an________(优势) over others.

6. Doctors say these drugs can reduce pain and________(延长) lives.

7. These are the________(传统的) foods for Christmas.

8. All the children were________(包括, 涉及) in the school play.

9. The________(生产者) of the new cars could not find a market for them.

10. The water pollution is causing a lot of________(社会的) problems.