问题
选择题
He was disappointed to find his suggestions ________.
A．been turned down
B．turned down
C．to be turned down
D．to turn down
答案
答案：B
题目分析：本题意为“他发现建议被拒绝而失望”。考查非谓语动词作宾语补足语的用法。A项形式不正确；C项表示的动作发生在“”之后，与题意不合；D项“时态”、“语态”都不对。故答案为B.