The boy kept _______ TV for nearly two hours yesterday.
It’s generous _______ him to give so much money to charities. Now he thinks it's important _______him to help people in poor areas.
—I have difficulty __________ the article.—Remember __________ it three times at least.
Now more and more people prefer _____ to_____ in order to reduce the air pollution.
---I’ll go on a trip to Hong Kong Disneyland. ---Wonderful! __________
You had better _______ wine because you have to drive back home.