问题
选择题
The little boy ________ in the mud all the morning. No wonder he is dirty from head to foot.[ ]
A．has played
B．is playing
C．has been playing
D．was playing
答案
答案：C
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The little boy ________ in the mud all the morning. No wonder he is dirty from head to foot.[ ]
A．has played
B．is playing
C．has been playing
D．was playing
答案：C