Which verb form best completes the following sentence? l’année dernière les lundis, mercredis, et parfois les vendredis. a) je travailles b) je travaille c) j’ai travaillé d) je travaillais i’m confused between a and c!

Which verb form best completes the following sentence? 

L’année dernière les lundis, mercredis, et parfois les vendredis.
C) j’ai travaillé

The answer is c) because last year is the past tense, and when you use "je" it means you are in the present. When you use "j'ai", it means you are in the past. There is only one option with "j'ai", which is c) , therefore c is correct.

Hope that helped :D