—How many pencils would you like Madame?—Well I wantof these.A. three dozenB. three dozen

问题补充：

—How many pencils would you like,Madame?

—Well,I wantof these.

A. three dozen

B. three dozen of

C. three dozens

D. three dozens of

答案：

A. three dozen

(答案→)B. three dozen of

C. three dozens

D. three dozens of

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