Out of the train_______, well-dressed and waving to the crowd.
. Only after he graduated _______ how much he loved his alma mater (母校) .
The speech which he made _______ the project bored me greatly.
---My god, it’s raining again. What a cold day! ---So it is. It’s really too cold _______ May.
Recent campus tragedies show that safety measures are so important that we _______ take them too seriously.
--- I was late for school this morning. ---_______ You started early, didn’t you?