—Is there anything wrong, Bob? You look sad.—Oh, nothing much. In fact , I ____ of my friends back home.
---Besides being bright, he has always been working hard. --- No wonder he _______ in almost all subjects.
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.