The scientist is well known us his great achievement.
It was _________ that everyone like to read it.
It was ______ 7:30 that he _________ home yesterday, so his parents were very worried.
Jack told us that his class ________ sixty-four students.
He was asked to _______ his class making a speech at the school opening ceremony.
The head teacher said ________ broke the rules would be punished.