一Were you at home at 9:00 last night? I called you but nobody answered.—Sorry, I _______ at that time.
---It is said that a new zoo will be built in our town.---I’m ________it. Zoos are terrible for animals.
Our new physics teacher got a pretty and lovely girl _____ .
---Excuse me. Could you wake me up when my friend _______here?---Of course. But we still don’t know when your friend ______ here.
There are ________ teachers in our school, ________of them are women teachers.
Teenagers should learn to protect (保护) ______from all kinds of dangers.