Question

解释一下这道题目

My grandmother seems to have a lot___.
A.worrying about
B.worry about
C.to worry about
D.to be worried
答案选D，解释一下。为什么不能选A。

Answer 1

应该用不定式短语。虽然说应该选名词性的词来回答，但是D更确切一点。