In their efforts to persuade us to buy that product, shopkeepers have made a close study of human nature and have_______ all our little weaknesses.
Look! What has happened? I’d rather you ______ her about the bad news.
In the old days, his father was not able to earn enough money to ______ his family.
I don’t think it is ______taking the trouble to explain the question to him.
It is impossible to ________one’s goal without working hard.
A poet and artist ______ coming to speak to us about Chinese literature and painting tomorrow afternoon.