[课 下 作 业]
Ⅰ.单项填空
1．When you are abroad，you find it’s difficult to get used to other country’s ________．
A．customs B．habits
C．practice D．instructions
答案 A [句意：当你在国外，你会发现很难适应其他国家的风俗。“风俗”用customs。]
2．The thirteen stars on the American flag ________ the thirteen colonies that announced independence.
A．show B．sign
C．represent D．explain
