---Where was your sister at this time yesterday evening ?---She was writing an e-mail ______ I was watching TV at home.
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.