What do you think “anxious” ______?

If you go to the post office，would you please get me a stamp？　　 —I am ______ willing to.

It is well known to all that water, ______ enough, can change into ice quickly

Examtakers’ “virtue” will be taken into ________ in the future nationwide public servants’ exam.

Hi, Johnson, any idea where Susan is?— It’s class time, so she in the classroom now.