一道英语单选.
问题描述：
一道英语单选.
I really appreciated it when I was in rtrouble he always ____ to help me.
A.afforded B.stuck C.refused D.offered
题目中“rtrouble”打错了。应该是“trouble”
答
D.
offer to do sth. 愿意/自愿/主动做某事