anxious to do和eager for 和be dying to和 be longing to 的区别

问题描述:

anxious to do和eager for 和be dying to和 be longing to 的区别
After Yang liwei succeeded in circling the earth,Chinese astronauts____walk in space.
A.anxious to B.eager for C.are dying to D.are longing to

答案:C、D都可以
如果把B改成:are eager to也可以
以上三个均表示 “渴望做某事”.
be anxious to do常表示 “急于做某事” 也可以表示“渴望做某事”