At horse races, everyone has already studied the form (类型) of the horse______.

He was working quietly, with all his attention _______ on the task

ear I applied to Princeton UniversityI ____ they would say yes—butthey did, and now here I am

John is very ____________ — if he promises to do something he’ll do it.

If people eat natural plant poisons by mistake, they _______ go to hospital without delay.