问题
选择题
The chairman thought ________ necessary to invite Professor Smith to speak at the meeting.
A．that
B．this
C．it
D．him
答案
答案：C
考查形式宾语。it是形式宾语，to invite Professor Smith to speak at the meeting才是真正的宾语。句意： * * 认为邀请斯密斯教授在会上发言是必要的。