49. 我不想吃这些蔬菜，因为它们不够新鲜。

I don't      eat these vegetables because they are not___________  .

48. 他虽然很勤奋,但还是记不住所有的生词。

He is very      ， but he still      the new words.

47. 那个有礼貌的女孩是谁的女儿？

             is that           ？

46. 他昨天一整天没有喝水，所以感到非常渴。

Yesterday he did not      any water for a      day,so he      very_________

45. Here are some presents I bought in Hong Kong. You can       (choice) one.

44. Don't believe him. He often      (lie) to others.

43. Li Fang is the      (shy) of all the girls in her class.

42. This book is so       (bored). I don't want to read one more page of it.

41. Where there is a      (willing), there is a way.

40. Can't you do your homework more      (仔细地)？