The little girl has been in a poor _____ of health since she was born, which has made her parents very worried.

If students have free ____ to the public library, they will be likely to do more reading.

In my opinion, you can widen the _____ of these improvements through your active participation. 

Next week there will be a basketball match between the ________ and the ________of our school. 

--- How can I use iPhone 4S ?--- Just refer to the _______.