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e B. as more difficult as。 more expensive D. more difficult as。 A. interesting B. interested C. more interesting D. most interesting 5. His father began to work______ he was seven years old.A. much important B. important C. much more important D. more much important7. This pencil is______ than that one.A. longest B. long C. longer D. as long 8. My mother is no _______ young.A. shorter B. longer C. little D. few 9. These children are ________ this year than they were last year.A. more tall B. more taller C. very taller D. much taller 10. It was very hot yesterday, but it is_______ today.A. even hotter B. more hotter C. much more hot D. much hot 11. Mrs. Black has got_______ instead of getting any better. A. quite a few B. only a few C. few D. a few quite 13. The house is _______ small for a family of six. A. tall very many B. very many tall C. very tall many D. many very tall 15. What39。 He is_______. A. more B. quite C. very D. much18. The earth is about________ as the moon. A. twice as large than C. bigger twice than D. as twice large as20. Your room is ________ than mine.A. three time big B. three times big C. three times bigger D. bigger three times21. His father is________ than his mother. 。 A. older four years B. as four years older C. four years older D. bigger four years22. Math is more popular th