【单选题】 On hearing a great noise, Mike looked forward through the window 【】what happened outside the room.(招录类,教师招聘,教师招聘考试(专业基础知识),教师招聘考试(小学英语)学科专业知识题库)
【单选题】 On hearing a great noise, Mike looked forward through the window 【】what happened outside the room.
Ato seeing
Bto see
Cseeing
Dto have seen