问题

Tony, come down and help me with the heavybox!— Come on! I _______ all day long．Get Peter to do that!

A:which
B:had been working
C:had worked
D:have been working

正确答案是：

同类题型

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Many people enjoy _______ the CD ________ Heart Strings.

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I was glad to meet Jenny again, I didn’t want to spend all day with her