物质在空气中燃烧、缓慢氧化、自燃的相同点是[ ]

A．都很剧烈

B．都发光

C．温度都需达到着火点

D．都属于氧化反应

在下列各句的空白处填入一个最恰当的单词，使句子意思完整，语法正确。

1.—_______ gloves are these?

   —They are Mary's.

2.  In many countries people _______ hands when they meet for the first time.

3.  Miss Green k________ her daughter and said good night to her.

4.  An elephant is the largest animal on       ____ .

5.  He used to hate me.  But now his attitude    __        me has changed a lot.

6.  Japanese and Koreans _   __   _ when they meet for the first time.

7.  The teacher and students _ ____    each other at the beginning of every class.

8.  Eating dumplings on the eve of the Spring Festival is a Chinese_______.

9.  Many people are lying on the beach.  They look very _  _____.

10.       __     is a country that is famous for making watches.