－How does Kangkang usually go to school?－He ______ ride a bike,but now he ______ walking.A.used to; used to B.was used to; is used to C.used to; is used to D.is used to; used to
问题描述：
－How does Kangkang usually go to school?
－He ______ ride a bike,but now he ______ walking.
A.used to; used to B.was used to; is used to
C.used to; is used to D.is used to; used to
答
选择C
used to do 表示过去一直……
原文就是过去一直骑自行车
be used to doing 表示习惯于……
原文中就是现在他习惯步行,固定搭配,不牵扯时态