They couldn’t say _____ it was _____ troubled them.
It is no use ______ to persuade him _______ smoking because he has been addicted to it.
Eager to play computer games, the little boy pretended __________ his homework .
Studies shows that people are more __________ to suffer from back problems if they always sit before computer screens for long hours.
It is said that his new apartment is ________ the old one. Which one can’t be used?
If he continues like this, he will ____________ a stone only to have it drop on his own foot, just as the old saying goes.