8．There are _________(百)of people in the market．

7．The problem is not very difficult，you can work it out _________(容易)．

5．Chinese Medicine is very popular in many w_________ countries like the USA and England．

4．It is known that the Yellow River is the second l_________ river in China．

3．Zhai Zhigang，Liu Boming and Jing Haipeng are our country's great h_________．

2．December is the t_________ month of a year．

根据句意和提示完成单词，使句子语法正确，意义通顺。

1．The house with a garden is so expensive that they can't a_________ it．