问题
单项选择题
I was standing behind him and I did see Sandra handing the letter to Joe.
A．hand
B．has handed
C．handed
D．was handing
答案
参考答案：A
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I was standing behind him and I did see Sandra handing the letter to Joe.
A．hand
B．has handed
C．handed
D．was handing
参考答案：A