. Either you or the headmaster the prizes to the gifted students. A. is handing outB. are

问题补充：

. Either you or the headmaster the prizes to the gifted students.

A. is handing out

B. are to hand out

C. are handing out

D. is to hand out

答案：

A. is handing out

B. are to hand out

C. are handing out

(答案→)D. is to hand out

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