The teacher doesn’t believe his reason for being absent from class ___ he was ill, ____mad him sad.
—Shall we go out for______ meal this evening? —Yes,that’s_____ good idea.
I don't know if you noticed their behaviors or not, but we______.
Here is the tower, ______ top you can have a good view of the whole city.
People in industrial countries take in as they actually need every day.
To meet the challenge, the young people preferred heavier work to do in their spare time.