—May I open the window to let in some fresh air?—！A. Come onB. Take careC. Go aheadD. Hold

问题补充：

—May I open the window to let in some fresh air?

—！

A. Come on

B. Take care

C. Go ahead

D. Hold on

答案：

A. Come on

B. Take care

C. Go ahead

D. Hold on

解析：C

解析根据语境可知，第二个说话人同意对方的做法，故选Go ahead，意为“去开吧，去做吧”。