— Did you watch the opening of Winter Olympic games?— No, I didn’t. I ______ on the Internet.

—Where have you _________ all day? —I came back at noon and I _________ in this room ever since.

  My mother ________ as an architect since she graduated from Tongji University.

I don’t know if she___________. If she __________, please let me know.

Thereportersaid that theUFO  east to westwhenhesawit.