---Jane, I can’t find Lucy in the classroom. ---Oh, she ________ the piano in the music room.
There are many young trees on ______ sides of the road.
________ of them has his own opinion.
The box is_______ heavy for the girl _______ carry.
He may come,but I'm not sure ______ that.
—Why not _______more milk ______the coffee? —That sounds great.