1. 根据要求完成句子

1. （1） There is something bad happening outside.（改为否定句）

   There isn't happening outside.
   

3. （2） We can't have sports meeting because the rain is heavy. (改为同义句）

   We can't have sports meeting the heavy rain.

5. （3） You must be quiet!（改为祈使句）

     , please!

7. （4） They have no more books.（改为同义句）

   They books .

9. （5） The boy is very clever.（用what改为感叹句）

     he is!