People thought __necessary to invite Mr Smith to speak at the meeting
问题描述：
People thought __necessary to invite Mr Smith to speak at the meeting
It was some time __ we realized the truth(when until since before)
Sandy could do nothing but__to his teacher that he was wrong(admit)
答
People thought _it_necessary to invite Mr Smith to speak at the meetingIt was some time _before_ we realized the truth(when until since before)Sandy could do nothing but_admit_to his teacher that he w...