问题
选择题
He is not selfish at all; instead he is always _________ to help others in trouble.
A.possible
B.likely
C.probable
D.willing
答案
答案:D
题目分析:句意:他根本就不自私,相反,他总是愿意帮助有困难的人。Be willing to do是固定句型,意思是愿意做某事,可知选D。