--I hear Mr. Black is ill in hospital again.
---What a poor man! I can’t help but sorry for him.
A. feel
B. to feel
C. felt
D. feeling
网友回答
(答案→)A. feel
B. to feel
C. felt
D. feeling
解析：考查固定搭配。固定搭配can’t help but do sth=can’t help doing sth，不得不做某事；忍不住做某事；句意：—我听说Mr. Black又生病住院了。—真是一个可怜人，我不得不为他感到遗憾。根据句意说明A正确。