Of all the boys, John does his homework ______.
A. more careful B. the most careful C. more carefully D. the most carefully
________ he is very tired，________ he sill works in the factory.
A.Although,but B.But，although C./，although D.Although，/
—________ times did you go climbing last year？
—Twice.
A.How long B.How many C.How much D.How often
He studies English as ________ as his brother.
A.hard B.hardly C.harder D.hardest
Was your school trip to the mountains ________?
A.successful B.success C.successfully D.succeeded
—What do you think of Yang Yang？
—Oh ,he is my favorite singer. I think no one can sing ________.
A.good B.well C.better D.best
