问题
选择题
—Who is knocking at the door?
—________ me. [ ]
A. This is
B. It's
C. I'm
D. That's
答案
答案：B
搜题请搜索小程序“爱下问搜题”
—Who is knocking at the door?
—________ me. [ ]
A. This is
B. It's
C. I'm
D. That's
答案：B