Are you parents going to working （） bikes or （） bus?Are you parents going to working （） bikes or （） busA on their ;byB by ;byC on ;on theD by;on a是选D吗.请说明下

Are you parents going to working （） bikes or （） bus?Are you parents going to working （） bikes or （） busA on their ;byB by ;byC on ;on theD by;on a是选D吗.请说明下
Are you parents going to working （） bikes or （） bus?
Are you parents going to working （） bikes or （） bus
A on their ;by
B by ;by
C on ;on the
D by;on a
是选D吗.请说明下

Are you parents going to working （） bikes or （） bus?Are you parents going to working （） bikes or （） busA on their ;byB by ;byC on ;on theD by;on a是选D吗.请说明下
by bus ,by bike 都是固定搭配,记住!
如果你没打错,bike的确是复数,就用A,bike不是复数,就是B

B
没有解释的，这个是规则，交通工具前用BY

3千万人确认

诗选B的