20. When a stick is partly in a glass of water, it looks ________ it were broken.
He is the man _________ you can turn when you are in trouble.
—How are you getting along with your studies? —Not very well, ______.
Whenever we’re in ________, we should never lose ______ but try to think of the way out.
Is this factory ______ the foreign investors are going to visit next month?
I couldn’t move my legs. It was ______ they were stuck to the floor.