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来源:百度文库 编辑:高校问答 时间:2024/05/01 15:16:34
A chemical teacher was sdanding by the desk, ______
explaining the exercises to the students had done _______
at home the day before, a few minutes past,he ______
wak shaking all overand his nose was blue with_______
cold.All of sudden he noticed that one of the _____
windows was open.
He was a bit angry,and he asked in _____

a kind voice:"Who let the window opened?"_______