French language Q&A Forum

When I wrote "à vélo" I received a correction that I should have written "en vélo." However, I was under the impression that both "en vélo" or "à vélo" are acceptable (see: À/en + [means of transportation] (French Prepositions)). Was this an error or is there a reason that "à vélo" is not acceptable here?

The question read, How do you say, “We don’t know you at all.” Before I clicked on the drop-down arrow, I was expecting to see: Nous ne vous connaissons pas du tout. I was surprised to see that the choices only included the familiar form: Nous ne te connaissons pas du tout. Wouldn’t the fact that the familiar form was used imply that we do know you?  Is it that I was applying a literal meaning to a figurative question?

I answered the question correctly but it was marked wrong. I paid very close attention to the answer.

•Quelle est la différence entre "étudiant" et "élève"

•Also please tell me how many total tenses are there in French

Kindly list them for me...

Thanks