（1）Jerry does morning exercise every day.(改一般疑问句）
Jerry morning exercise every day?
（2）The water was too dirty for us to drink.(改为同义词)
The water was dirty we couldn't drink it.
（3）I don't know David's e-mail address.
He doesn't know David's e-mail address, either.(合并一句话)
he I know David's e-mail address.
（4）The author will leave for Xingyi in a month.(对划线线部分提问)
will the author leave for Xingyi?
（5）I think Allen must be playing basketball with his brother on the playground,
？(写出其反意疑问部分）