如图甲所示，在x轴上有一个点电荷Q（图中未画出），O、A、B为轴上三点，放在A、B两点的试探电荷受到的电场力跟试探电荷所带电荷量的关系如图乙所示，则（   ）

Jerry does morning exercise every day.(改一般疑问句）
____ Jerry____  morning exercise every day?
The water was too dirty for us to drink.(改为同义词)
The water was ____dirty ____ we couldn't drink it.
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.
The author will leave for Xingyi in a month.(对划线线部分提问)
____will the author leave for Xingyi?
I think Allen must be playing basketball with his brother on the playground,
____ ？(写出其反意疑问部分）