问题
选择题
When someone helps you, don't forget to say "________".[ ]
A. I'm sorry.
B. That's all right.
C. Goodbye.
D. Thank you.
答案
答案：D
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When someone helps you, don't forget to say "________".[ ]
A. I'm sorry.
B. That's all right.
C. Goodbye.
D. Thank you.
答案：D