问题
选择题
—Do you know who cleaned the blackboard, Tina?
—Yes. John ______. [ ]
A. do
B. does
C. did
答案
答案：C
搜题请搜索小程序“爱下问搜题”
—Do you know who cleaned the blackboard, Tina?
—Yes. John ______. [ ]
A. do
B. does
C. did
答案：C