---What’s the date today? ---_____________.
–I argued with my best friend. What should I do? –_______ you feel sad, you should write a letter and say sorry.
–When did the earthquake of Ya’an happen? –It happened _______ April 20, 2013.
–I like English best. What about _______? –He thinks science is very interesting. His favorite subject is science.
–Who’s that boy? –Liang Bo. He is _____ very popular singer in Voice of China.
---Where do Tom and John sit ? --- Tom sits __________ of the room and John sits _________ of the room.