根据下列句子的意思及所给单词的首字母或汉语提示，写出所缺单词，每空限填一词。

1．Do you know the Four Great I____________ of Ancient China?

2．In g__________, he can get along well with his classmates．

3．The apartment is so expensive that Mr. Green can’t a___________ it．

4．How to protect ourselves should be ___________ （教） at school．

5．The math problem is too difficult． __________ （无一人） of us can work it out in our class．

根据句意及首字母或汉语提示，填写句中所缺的单词。

1．There was a big fire in the office yesterday. L_________________, all the people were saved.

2．Li Lei is an h__________________ boy, he never tells lies.

3．The West Lake a _________________ thousands of tourists to Hangzhou every day.

4．The apartment is so expensive that Mr. Green can’t a__________________ it.

5．Mom, I’m so h__________________. Can I have something to eat?

6．There are __________________ （较少的） apples in this basket. I prefer that one.

7．Both of my best friends were born in ________________ （十月）.

8．We are often told not to be __________________ （紧张的） in the examinations.

9．On my ________________ （第九） birthday, I got a computer from my aunt.

10．The camera was one of the greatest _________________ （发明） in the 19th century.