ask sb. sth. 是双宾语结构, 意思是 “向某人求某物”或 “向某人询问某事”。例如:
Tom asked her pardon.(汤姆请求她的宽恕)。
You should ask others the way to the station. (你应该向别人打听到车站的路)
sth. 也可以用从句,例如 He asked her what was wrong(他问她出什么事了)
I want to ask him to go to the cinema.
don't ask me that question!
She asked me your plan.