根据句意及首字母或汉语提示完成句子。
1. In China, people usually s_____ hands when they meet for the first time.
2. The students are s_____ to wear their uniforms at school, aren't they?
3. You had better not k_____ the baby's mouth because she is ill.
4. —W_____ spoon is this?
—It's Li Lei's.
5. —May I use the k_____ to cut the apple?
—Yes, please.
6. —Could you please eat some delicious food again?
—No, I am f_____ now.
7. Sometimes we can use some punctuation (标点) m_____ to express our emotions.
8. We should often _____ (实验)with our own ideas, so that we can improve our skills.
9. It's very important to use e-mail at the _____ (合适的) time.
10. I'm _____ (逐渐地) getting used to things.
