67．We should study hard in order to 　　　　　(提高，改善)our English．

66．I read a book about 　　　　　　(地理学) ．

65．This special is very d　　　　　 , we all like it．

64．Don' t go to that restaurant, the food there is a　　　　　 ．

63．The room is too d　　　　　 , please clean it．

62．Mrs. Green likes wearing c　　　　　　 　clothes, because she wants to be young．

A)根据句中汉语或首字母提示，填入适当的单词。

61．The skirt was too e　　　　　　 ,so I didn't buy it．