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---How often do you write to your online friend?
--- Once a week, and he always ____________ to me in time.
---- Where is Tommy?
---- He ____________with his sister in the next room.
My grandma  ____________a lot in the past, so she looks much older than she is.
--How soon  ____________your mother ____________ back home from work?
--In half an hour.
____________ you ___________ from your parents recently? Yes.