.He asked ____any elephants in the zoo the day before. A,if did you see B,if you had seen C,whether did you see D,that you had seen
His parents told him ________ too much about what others said.
________ his appearance, he is most probably a new teacher.
After teaching in Bejing for five years, he returned to the small town ________ he grew up as a child.
He devoted all his life to ________ those who are suffering from cancer.
Gone are the days ________ China was called “a Sick Man of East Asia”.