《Unit 1 You must be careful of falling stones.》中考真题

—Do you still remember our primary school teacher,Mrs Liu?

—Yes,she always encouraged us and gave us support ______ we met difficulties.

Ants are pretty small. You might think that they ______ be rather weak. But what you might not know is that ants are actually very strong for their size.

The boss was late for the meeting because his alarm clock didn't ______.