四、词汇运用（共l0小题；每小题l分，计l0分）

根据句子意思，用括号中所给汉语提示或英语单词的适当形式填空。在答题卡标有题号的横线上，写出空缺处所填单词的正确形式。（每空一词）

46. December is the    ▲    month of a year. （十二）

47.   ▲    your answers with those in your book to see if they are right. （比较）

48. The roads are becoming more and more    ▲    because of too much traffic. （拥挤的）

49. His uncle is one of the best    ▲    in that company. （工程师）

50. Most of the girls like to wear    ▲    clothes. （时尚的）

51. It’s helpful to the future    ▲    of Chinese students. （develop）

52. A friend of  ▲  (I) is getting married tomorrow.

53. I think his idea is worth   ▲   (consider).

54. For your own    ▲   , you’d better not play football in the street. （safe）

55. Of all the boys, Jack is the    ▲    in our class. (heavy)