- Can I help you, madam?- No, thank you. I now. [ ]A. have been served B. have s
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![- Can I help you, madam?- No, thank you. I now. [ ]A. have been served B. have s](/pic/43_617135.jpg)
— Can I help you, madam?
— No, thank you. I _____ now. [ ]A. have been served
B. have served
C. am being served
D. am serving
试题答案
C