I’m proud to be able to help __________people.
Many teenagers show interest in the books that are written ________ Guo Jingming.—That’s true. My son says he can get what he thinks and wants in his books.[ ]
Will the _________ of English last long?
It’s traditional in China to firecrackers on Spring Festival. —-But the serious smog（雾霾）nowadays needs us to stop it.
Are Mr. and Mrs. Wang living alone in the house? —-Yes, altough they have three sons, of them live with their parents.