It is said that children in South Korea have to hike and walk through mountains at night_____their military(军事的) training.
Really? So their training is much harder than ours.( )
A.afterB.sinceC.duringD.before
It is said that children in South Korea have to hike and walk through mountains at night_____their military(军事的) training.
Really? So their training is much harder than ours.( )
A.afterB.sinceC.duringD.before