We were pretty _____ when we learned the _______ fact that an elephant would come to live in our school.
After a long vacation, Mike came back _________.
This sweater fits me, but I can’t afford to buy __________. I have to choose _________ which is cheap enough for me.
He suggested the problem worth paying attention ______ at the meeting.
I fixed my eyes upon the newcomer, wondering whether I ________ him somewhere before.
一I’m sorry! I would have taken him to hospital if I had known he was seriously ill.一But ______ .