Lequel/lequelle...i always guess wrong!
You don't need to guess since both "lequel" and "laquelle" are accepted. Yet in either case, the rest of your sentence must be correct. Next time, please copy and paste your entire sentence, so that we can tell you what went wrong.
Sandib67, it is incorrect if you put 《lequelle》... it's 《laquelle》 for feminine nouns.
why lequel instead of laquel and how do you know for sure when to use laquel or laquelle
Are you sure its not a choisir?
I answered 'Je ne sais pas laquelle choisir' it is wrong but I do not know why? please help.