—Are those boys your friends ?—
The windows of the classroom ________ every day.
---________ is “Lucky 52”shown on CCTV-2”?---Every week.
---Is everyone here today?---No, Lily is absent. She with her mother _______ to Guangzhou to see the flower shows.
I often see my teacher, Ms Zhao, ________ books in her office.
She told us a story. Her voice sounded ___________.