—Is that boy Alan?—No, it ______ be him. He left for Beijing yesterday.
I am glad to hear that you_________________ in English.. A.have made a rapid progress B. have make rapid progress C. have made rapid progress
Students ought _________ the truth. A. to tell B. tell C. telling
—Could you tell me______ at this time yesterday?—Oh, I was watching TV.A.when you were goingB.where you were goingC.what you were doing
—Do you often visit your grandpa in your free time? —No,he___________for a few years. A.died B.has died C.has been dead
—There are______cars in recent years . —Yes ,and there is_________pollution. A.too much , too many B.too many , too much C.too much, much too