---Who is that woman? ---She is ________ mother.

The teacher together with his students ___ down at the desk and having a discussion in the classroom.

With more forests being destroyed, huge quantities of good earth ___________ each year.

-- Look at the trainers, Andy. They look like yours.--No. Mine             black and white.

There _____ ten desks in this room but there aren’t _____ in that room.