A-A+

They found the lecture hard ______.A．to unders

2022-08-06 20:17:59 问答库阅读 181 次

问题详情

They found the lecture hard ______.
A．to understand
B．to be understood
C．to have been understood
D．to have understood

正确答案：A
解析：动词不定式在difficult，easy，fine，hard，impossible，nice等形容词后出现的不定式只能用主动式。本题正确答案为A。