Most greetings cards are folding and have a picture on the front46/50Mark 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) Most greetings cards are (B) folding and have a picture (C) on the front and a message (D) inside.Most foldingon the frontinsideGiải thíchChọn B