Chọn đáp án đúng: They have a good __________ of stamps about lots of countries in the world

WORD FORM:

27. They have a good __________ of stamps about lots of countries in the world.

      a. collect               b. collection              c. collective               d. collectively

28. That little girl can dance __________.

       a. beauty               b. beautiful                c. beautifully             d. beautifier

29. They seem to be very__________. We really dislike them.

      a. unfriendly         b. friends                   c. friendship              d. friendly

30. Our _________ have not warned our fishermen about the Changchun typhoon carefully.

a. science             b. scientific               c. scientifically         d. scientists