THEY OFTEN WENT TO SCHOOL BY BIKE WHEN THEY WERE YOUNG. A. THEY US...

39. They often went to school by bike when they were young. A. They used go to school by bike when they were young. B. They used to going to school by bike when they were young. C. They used to go to school by bike when they were young. D. They used to went to school by bike when they were young.