一What’s the matter _____ her?一She has a toothache.
It’s normal to feel sad when _______ happens to us.
There is ________ snow. Put on your coat. It’s ______ cold today.
He often borrows money _______ others but he doesn’t lend anything ______ anybody.
Come on. Don’t stop. The _______ you work, the _______ grades you will get.
In order ____________ for the meeting, my sister had to get up early this morning.