问题
选择题
—What are you doing?
—____. [ ]
A. I can't find my book
B. I open the door
C. I'm singing a song
D. Yes, I am
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—What are you doing?
—____. [ ]
A. I can't find my book
B. I open the door
C. I'm singing a song
D. Yes, I am
答案：C