问题
选择题
--- Didn’t your brother ________ go to school by bike?
--- Yes, he did. But he ________ walking to school now.
A．used to; used to
B．use to; used to
C．used to; is used to
D．use to; is used to
答案
答案：C
题目分析：句意:-你的弟弟过去经常骑自行车上学吗？-是的。但是他现在习惯了走路上学。used to 后跟动词的原形，意思是：过去常常做某事；be used to 后跟动词的-ing形式，意思是：习惯于某事。根据句意可知选C。