高等继续教育 / 电子商务英语
正确率：100%
题型描述: 单选题
We ＿＿＿＿＿＿ _ tennis in the park when you phoned.
A.must have been playing
B.must be playing
C.must have played
D.must play
We ＿＿＿＿＿＿ _ tennis in the park when you phoned.
A.must have been playing
B.must be playing
C.must have played
D.must play
参考答案：
佳题速递：