When the office I found the naughty boy beside my desk trembling.A. entered; standingB

问题补充：

When the office, I found the naughty boy beside my desk, trembling.

A. entered; standing

B. entering; stood

C. entered; stood

D. entering; standing

答案：

A. entered; standing

B. entering; stood

C. entered; stood

(答案→)D. entering; standing

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