— ________ big river it is!— Yes. I am afraid I can’t swim ________ it.
The shoes are made_________ leather and are suitable _________going for a walk.
If you want to be _________, you should eat_________.
---_________ are these science books? --- Uncle Wang’s.
Is there_________ in today’s newspaper?
There are_________ floors in this shopping mall. KFC is on the_________ floor.