1. B)根据语境及所给汉语提示语写出所缺单词。

1. （1） He is reading a book about(西方的)history．

3. （2） Here are two(鼓)．What are they for?

5. （3） You are lucky．You can work for these two learning(中心)．

7. （4） Did you hear a big(声音)?

9. （5） Look!That man is my(年长的)brother.