题目内容
【题目】—Tony, come down and help me with the heavy box!
—Come on! I__________ all day long. Get Peter to do that!
A. work
B. had been working
C. had worked
D. have been working
【答案】D
【解析】考查时态,从答语中的时间状语all day long 可以判断应用现在完成进行时。
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