— Is that your schoolbag ?—No, it isn’t. It’s _______
If you’re strict with yourself, you_____ great progress.
--- Where is your grandpa now? --- He ______ newspaper in the living room.
It’s very late at night, ____ our teacher is still working .
--- ______ you give your seat to this old man? --- Of course.
My mother has two brothers. One is a doctor, ____ is a lawyer.