—Where is Mother?—She is in the kitchen. She ______the housework all morning.

Professor James will give us a lecture on the Western culture, but when and where ____ yet.

You’d better not phone me between two and six o’clock this afternoon; I ___ a speech then.

 By the time she ________ home, her parents will have prepared some delicious food for her. 

My parents ________ in Hong Kong.They were born there and have never lived anywhere else.