( )当你和别人打招呼时,你应该说 A.Hello B. Mike C. Lucy
How long has he_______the job?
—_______ have you been studying English? —Since 2002.
It’s cold here. Please keep the window_________.
Simon heard his neighbor _________ for help at night.
An old friend of my sister’s always helps my brother and _________ with _________ lessons.