请选择ABC;Z2K0}7C7H7N5[.V(o5n There is a bridge _______ the river.+z6S,_:g+d+S(w+y-O,L0O;F6Z9W)X
A. on+z6S,_:g+d+S(w+y-O,L0O;F6Z9W)X
B. over+z6S,_:g+d+S(w+y-O,L0O;F6Z9W)X
C. under+z6S,_:g+d+S(w+y-O,L0O;F6Z9W)X