问题
选择题
11. When_____________help, one often says “Thank you.” Or “It’s kind of you.”
A．offering
B．to offer
C．be offered
D．Offered
答案
答案：D
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11. When_____________help, one often says “Thank you.” Or “It’s kind of you.”
A．offering
B．to offer
C．be offered
D．Offered
答案：D