—Hey, Jack. Waste paper mustn’t ________ here.
—Sorry, I won’t do that again.
A. throw B. be thrown C. be throwing D. to throw
—How long has Henry’s father_______?
—About two months.
A. left ChinaB. bought the car C. borrowed the book D. been away
—We should _______ humans from ________ down too many trees.
—I agree with you. Trees are very important to us.
A. keep; cut B. prevent; cut C. stop; cutD. prevent; cutting
—I have no idea ____________ tell her the bad news.
—I think tomorrow is the best time.
A. how to B. when to C. how can I D. when can I
—Neither Mary nor her friends _________ joined the music club because they have no time.
— It’s a pity!
A. is B. are C. have D. has
Mr. Li will go to Guangzhou by air. His workmates are ______ him off at the airport.
A. turningB. seeing C. taking D. putting
