---______did they go to work last week ?
---Once .
---Look! She is running so fast!
---Hard to______her legs were once broken.
---When do you exercise every day?
---______the morning.
--- What are you doing?
--- I ______ a letter to my pen pal.
---Who teaches ______ physics this term?
---Miss Yang.
---Why not come and join us in the game, Linda?
---______, but I have something to discuss with Mr. Smith at his office.
---Can you tell me Kitty’s address.
---I don’t know, either. But I’ll tell you her address as soon as she ______ to me.
---Is Miss White______ English teacher, Maria?
---No,she teaches______ geography.