Mr. Sun has devoted most of his time _______ his teaching work.
-It will be my turn .I feel a little nervous.- .You can make it.
- interesting the film is?-Yes,I have seen it twice.
-Tom ,are you boy in your class?-No,but John is.I’m shorter than him.
A ship from South Korea sank into the sea April 16,2014.
-Do you know the girl is talking with our teacher?-Oh,she is my sister.