Question

Fill in the blanks with appropriate preposition
1. you can reach the American Libary ................. Central Avenue either .............. bus or ............a cab though i think the journey............... the underground Metro is the most comfortable and time saving option . If you are coming ................ Metro , hop ............... a southbound train going ................. Tollygunge . The train starts .................. Dumdum. Get ............park street . Then walk ...................straight ...................you find the escalator that can carry you up. or you can also climb ................ the stairs to go out ............. the station . After getting out ................. the Metro station you must walk straight ................. park street ................. a minute . Turn right towards Nandan and walk .................. Jawharlal Nehru road for about three minutesd . you will find a brown building ..............your right..................several guards . The main gate will be closed . There is a small gate .
.......................routine check you will be allowed to enter the library . you have to walk ............... two more gates ................ the lift that takes you up . Go .................... the third floor to use the library .

Answer 1

after library 'and' will come
after either 'by ' will come