she was ashamed of ____________ by them.
(a) laughing
(b) laughing at
(c) being laughed
(d) being laughed at
저는 답을 (c) 라고 했는데 답지에는 (d) 라고 되있네요..
답지 설명이 이해가 안가서 -- (설명좀 해주세요 !)

she was ashamed of ____________ by them.
(a) laughing
(b) laughing at
(c) being laughed
(d) being laughed at
저는 답을 (c) 라고 했는데 답지에는 (d) 라고 되있네요..
답지 설명이 이해가 안가서 -- (설명좀 해주세요 !)
