题目内容
山东省青岛市2011届高考第一次模拟测试试题
you turn off all the lights when you leave the classroom.
A. Making sure B. To make sure C. Being sure D. Make sure
D

练习册系列答案
相关题目
题目内容
山东省青岛市2011届高考第一次模拟测试试题
you turn off all the lights when you leave the classroom.
A. Making sure B. To make sure C. Being sure D. Make sure
D