根据首字母提示，完成短文填空。

B

      Before windows were used, old h____ in Europe（欧洲）and Britain were very dark. Their great rooms were high w ____ only one hole in the roof（屋顶）to let the smoke o ____ from cooking fire. Later, people began to make the holes b____ to have more light and air in their homes. The first English window was j____ a small opening（口，孔）in the wall. It was cut long to let in as m____ light as possible, and narrow to keep out the bad w____. However, with the window cut long, more wind than light would c____ in. This is why it was c____ “The wind's eye”. And the word “w____” comes form two ancient（古代的）words for “wind” and “eye”