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.