She looks very sad. I want to help her, but I just don’t know ____ to do it.
Which of the following sentences is right?
We should do more work with _______ money and _______ workers.
It’s _______ of him to do things for others all the time .
There _______ a pair of scissors and two pairs of trousers on the bed.
The trip _______ us about four hours by plane.