—I have shown you all the interesting and important places of our school.
—Thank you for ________ so much time.
A.taking B.spending C.costing D.having
—Do you mind my smoking here?—_______. You can go to smoke in the next room.
A.Yes，please B.Never mind C.Of course not D.You’d better not.
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
