Would you do me a(n) and open the window? It is so hot in the room.A. helpB. favorC. aidD

问题补充：

Would you do me a(n) and open the window? It is so hot in the room.

A. help

B. favor

C. aid

D. service

答案：

A. help

(答案→)B. favor

C. aid

D. service

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