根据句意及首字母提示写出单词

1. S          time with family is very important to us.

2. In Brazil, you should w           your mouth with your napkin every time you take a drink.

3.In Switzerland if someone i           you to meet them, you have to be there on time.

4. Was I supposed to h   ____the spoon in my left hand?

5. We should speak to old people p    ____.

6. I am learning how to b           at the dinner table in France.

7. It is bad m   ____to make noise while eating soup.

8. You wouldn't believe how quickly my French has i              .

9. Mr Liu is very strict with us, while Mr Lee is pretty r    ____ about us.

10. The students are g    ____getting used to the pronunciation of the new English teacher.

绿色化学中，最理想的“原子经济”是原子利用率为100%。下列反应类型能体现“原子经济性”原则的是[ ]

①取代反应　 ②加成反应　 ③置换反应　 ④酯化反应　 ⑤化合反应

A．①②

B．②⑤

C．③④

D．②④