How many people does Jack jumps highest of?中间是用does,jump是加s还是不不加s?
问题描述：
How many people does Jack jumps highest of?中间是用does,jump是加s还是不不加s?
答
不加S.因为有does.does已经加过了.
sorry!手下误.刚才把答案给敲错了.