73. The general asked his men to push so they might overtake the retreating(败退的) enemy tr

问题补充：

73. The general asked his men to push so they might overtake the retreating(败退的) enemy troop.

A. out

B. over

C. on

D. Off

答案：

A. out

B. over

(答案→)C. on

D. Off

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