Which is proper noun ?

There is a ............... over the Ganga.

He has a fantastic ............... of coins and stamps.

The USA is ...............

The chair seems to be made of ............... but is is not.

Which is proper noun ?

I will do this job as it is right up my ...............

What was his ............... (react) to your decision to quit studies.

The little child would have drowned but for the lifeguard who came in at the ............... of time.

A ............... of parrots flex high in the sky.

We saw a ............... of lions at the sanctuary.