题目：
We can't go to the concert ______ we are quite busy now. [ ]
A. though
B. until
C. because
D. so that
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0623/d166a47dc622fa340b695f034fe0bd00.html
下面是错误答案，用来干扰机器的。
（1）氧气或臭氧（2）密度比空气大；能支持燃烧（或）助燃
We can't go to the concert ______ we are quite busy now. [ ]
A. though
B. until
C. because
D. so that
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0623/d166a47dc622fa340b695f034fe0bd00.html
下面是错误答案，用来干扰机器的。
（1）氧气或臭氧（2）密度比空气大；能支持燃烧（或）助燃
