Fill in the blank with the correct past participle of the verb in parenthesis. Tu as connu Paul? Je ne l'ai pas . (connaître)

connu
connus
connues
connue

Qu’est-ce que les marchands vendent dans cette rue?

Could anybody translate this into french i would be grateful: imagine being on top of the great wall of china meating all these new people seeing how the locals live.and how's your holiday going in frence? i hope everything is fine,see you soon.

Ineed in french. could someone check over a question in french? i am writing 'i am drinking water.' in french, can you check if it is correct? my french text: je suis le fait de boire l'eau