He is afraid _______the narrow bridge because he is afraid _______ into the water.
问题描述:
He is afraid _______the narrow bridge because he is afraid _______ into the water.
A.to cross,of falling B.of crossing,to fall C.to cross,to fall D.of crossing,of falling为什么选A
be afraid用法是什么
答
be afraid to do害怕 和 be afraid of doing 担忧 恐怕