—— Shall I help you with the heavy box?—— Thank you.A. It couldn’t be better.B. Of courseC

问题补充：

—— Shall I help you with the heavy box?

—— Thank you.

A. It couldn’t be better.

B. Of course

C. If you like

D. It’s up to you

答案：

(答案→)A. It couldn’t be better.

B. Of course

C. If you like

D. It’s up to you

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