URGENTE!!! AJUDA PFV I’m Lucy and I work……. an office……London....

URGENTE!!! AJUDA PFV I’m Lucy and I work……. an office……London. During the week , I get up…..sixty- thirty. I go…..work by subway, but ……Saturdays I like walking up ate because I do not work ….. weekend.
Complete the paragraph with a proper preposition: *
a) in – in - about – to – in – at
b) at – in – at - to – in – at
c) on – in – about – at – on - at
d) in – in – at – to - on - on