No matter how frustrated she was in her heart, she would _______ others with a smile as usual; she didn’t want to let them know.
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.