— Did you have a good weekend?—          . I was busy studying for the test.

—Remember to turn off the lights before leaving the classroom, children.—______.

--- Zhou Yang won the 1500-meter Olympic title at the Sochi Winter Games on February 15. ---_______________________ 

当你称呼李老师（男）时，应如何称呼？________.

 —Don’t have your mobile phone on when you are in the library.— __________.