For All Poem by gnrao rao

I was about to leave in ten minutes. to.in
.about.
Have you an aptitude for maths.? ? for
You must abstain from drinking. from
You can go across the river in a boat. across.
Tibet lies beyond Himalayas. beyond
Excess water can be let out of the tank. Out. of.
The treasure was hidden beneath the statue. beneath.
The teacher does not leave the school at 6.p.m at
The principal stays in the school till 7 p.m. till
The wolf sprang upon the wolf. upon
You can sit beside me as long as you wish. beside
This train goes from Coimbatore to Chennai. from.to.
My life is only for you. for
He saw his name among the successful candidates. among
What are those words which
the extensions in the above sentences.
Are they prepositions?