(    )47. The little boy has two ___________.

        A. teeths              B. tooths             C. tooth             D. teeth

(    )46. You’d better stay at home. The wind is blowing __________ at the moment.

        A. strongly            B. hardly            C. loudly            D. quickly

(    )45. -We are going to visit Cambridge for our summer holiday.

       -Super! I’m sure you can __________ yourselves there.

       A. help        B. teach         C. look after     D. enjoy

(    )44. -It’s so kind __________ you __________ me so much help.

        -Don’t mention it.

        A. for, to give     B. of, to give         C. for, giving         D. of, giving

(    )43. When I met the woman, I remembered __________ her once somewhere. But I forgot __________ hello to her.

        A. seeing, saying      B. to see, to say      

C. seeing, to say      D. to see, saying

(    )42. We have never seen _________ film before. It’s very interesting.

        A. so a good        B. a so good           C. such a good        D. a such good           

(    )41. The two watches are both very beautiful. I really don’t know          .

        A. what to choose    B. which to choose     C. to choose what     D. to choose

(    )40. The land, water and air must __________ clean in our city.

        A. make            B. keep              C. be making        D. be kept

(    )39. If you come back __________ I do, wait for me here.

        A. before            B. after              C. when           D. while

(    )38. -Sir, you __________ park your car in the middle of the street.

         -I __________ stop. A dog was running across the street.

         A. mustn’t, needn’t  B. needn’t, mustn’t   

C. mustn’t, must      D. needn’t, need