[ ]I___to school by bike,but now I___taking a bus .

问题描述:

[ ]I___to school by bike,but now I___taking a bus .
A.usd ,am used to B.used to go,used to C.used to going,am used to D.used to go ,am used to

D
used to do 过去常常做某事
be used to doing 习惯做某事
我过去常常骑自行车上学,但现在我习惯乘车上学