書名：New Toeic新制閱讀超高分
頁數：p.142
題目：121.
The project development team is partially responsible for the selectio
n and _____ of potential building sites.
(A) appraisal
(B) appraises
(C) appraise
(D) appraised
疑問：為甚麼是A而不是B
是因為of前面不能放動詞嗎？