1 . Friends are very important to me because they often bring me a lot of ________ (happy).

2 . She gets to know the ________ (important) of helping others.

3 . After you go into the room made of rocks, the Wi-Fi c________ gets quite weak.

4 . ____ (eat) a lot of vegetables and fruit is good for our ____   (healthy).

5 . The teacher told of the ________ (important) of getting a good education and changing one’s life with knowledge.

6 . The p________ of China is much bigger than that of the USA.

7 . The old _________（桥）has been there for about thirty years.

8 . It’s my ________ (高兴，乐事) to help you, ladies and gentlemen.