—He got his first book published. It turned out to be a bestseller. —When was _____? —_____ was in 2000 when he was still in college.
It was with great joy ________ he went to Shanghai to work as a volunteer there.
Tom said that he was late because he ________ in the elevator.
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.