题目内容
单项选择。
--Hi, Nancy, you look tired.
--I am tired. I ________ on the novel all day.
[ ]
A．worked
B．had worked
C．have been working
D．have worked
答案：C
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单项选择。
--Hi, Nancy, you look tired.
--I am tired. I ________ on the novel all day.
[ ]
名校课堂系列答案