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题目内容
（国家开放大学网络实用技术基础）
-This box is too heavy for me to carry upstairs. -________________
A、You may ask for help.
B、Let me give you a hand.
C、Please do me a favor.
A、You may ask for help.
B、Let me give you a hand.
C、Please do me a favor.
参考答案
