There are many trees on ________ sides of the road.
The light in his office is still on. Do you know _______?—To prepare for the material(材料) the meeting will need tomorrow, I think.
How many members does your club have?— There are members in my club.
What do you want to be in the future, John?― I want to be _____ fashion designer. It is ______ interesting job.
Are these your books?–Yes,