问题描述：
以下全是句型转换.请简要说明理由.现在就要.12点之前要.
They are running in the playground.对are running提问
There is a letter in the postbox对a提问
The man witha dog is Mr.Liu对with a dog提问
Turn the tap off right now(opposite)
The tyre is very flat对very flat提问
They are jumping(use"fight" to write a double Q)
They are running in the playground.对are running提问
There is a letter in the postbox对a提问
The man witha dog is Mr.Liu对with a dog提问
Turn the tap off right now(opposite)
The tyre is very flat对very flat提问
They are jumping(use"fight" to write a double Q)
问题解答：
我来补答展开全文阅读