Find the correct order of prepositions for the following sentences :

Valentina Tereshkova became interested ____ skydiving ____ the local aero club.

You will have to choose____________the two evils.

My brother specializes _____ Economics.

The pakistani rulers used weapons ——— us instead of defending us from external enemies.

"Rabindranath Tagore was the most famous poet (1)___ Bangladesh.