问题
选择题
— Don't drop paper on the ground.
— _____. [ ]
A. It doesn't matter
B. I am happy
C. I'd love to
D. OK
答案
答案：D
搜题请搜索小程序“爱下问搜题”
— Don't drop paper on the ground.
— _____. [ ]
A. It doesn't matter
B. I am happy
C. I'd love to
D. OK
答案：D