问题
选择题
There is a sign at the train station, reading “Don’t jump off a train when it’s .”
A．on move
B．on a move
C．on the move
D．moving
答案
答案：C
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There is a sign at the train station, reading “Don’t jump off a train when it’s .”
A．on move
B．on a move
C．on the move
D．moving
答案：C