If you want to see the chairman of the department, you’d better make an _________ with his secretary first.
When ______from top of the hill, our school looks small.
Tom went to his teacher for ______ on how to work out the problem.
This is his only request that the room ______ after being used.
Hearing the news about the crash of Air France Flight 447, he became very concerned _______ his daughter on board.
—So you didn’t say hello to him last night?—Well, I stopped and smiled when I saw him, but he_______ me and walked on.