Ⅰ.单词拼写
1．Please________(确保)that all the lights are switched off before you leave.
2．He informs us the________(招待会)has been put off.
3．China kept its market open________(自始至终)the financial crisis.
4．A government should p________the free expression of political opinion.
5．The high cost of the machine p________its widespread use.
答案 1.ensure 2.reception 3.throughout 4.permit 5.prohibits
