On the way back home from the library, we saw two of our classmates47/49Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. (A) On the way back home from the library, we saw (B) two of our classmates (C) to cycle (D) side by side.On the waytwo ofto cycleside by side.Giải thíchChọn C