____you stepped into the lab with your shoes on? You are supposed to take them off before you enter it.
—Do you know Ann Watterson very well? —Yes, she used to be ______ coach and in ______ charge of our school team.
—Do you mind if I smoke here? —______ I feel a bit sick.
She tried to stay calm on the stage, but her trembling voice _______ her nervousness.
一What do you think of the film last night? 一To be honest, action films don’t ______to me much.
Mary as well as her elder sister who______ Chinese at university ______ gone to China for holiday.