题干
——Don't open the door, _______who knocks on it.
——No problem, mom. You've told me many times.
A：even though
B：no matter
C：instead of
答案(点此获取答案解析）
B
——Don't open the door, _______who knocks on it.
——No problem, mom. You've told me many times.
A：even though
B：no matter
C：instead of
