bonjour, pouvais vous m'aider pour mon devoir de anglais WHICH/WHO

The slaves,.................................. were from Africa invented the blues.

Jazz,.................................... was born in New Orleans, has different instruments than the blues.

I met a woman ............................ went to New Orleans for Mardi Gras.

It's a beautiful day outside, ............................ is great because I planned on going for a walk.

Are you aware of the new shop ................................is opening next week?

is she? I've never seen her..................................... color do you prefer?