题目内容：

变为否定句 Jack can drive a car ,too Jack ( )drive a car ,( )
变为同义句
There is a knock at the door.
Someone ( ）（ )at the door.

优质解答

变为否定句 Jack can drive a car ,too Jack ( can't )drive a car ,( either ).杰克也不会开车.变为同义句There is a knock at the door.Someone (is knocking) at the door.有人在敲门.