问题
选择题
—Where's the bag?
—I _____ know.[ ]
A. aren
't
B. am not
C. isn't
D. don't
答案
答案：D
搜题请搜索小程序“爱下问搜题”
—Where's the bag?
—I _____ know.[ ]
A. aren't
B. am not
C. isn't
D. don't
答案：D