Andeison entered the classroom book in hand.A. × hisB. × ×C. a ×D. a the

问题补充：

Andeison entered the classroom, book in hand.

A. ×, his

B. ×, ×

C. a, ×

D. a, the

答案：

A. ×, his

(答案→)B. ×, ×

C. a, ×

D. a, the

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