Mi is singular and Mis is plural.
Mi abuela vs Mis abuelas. Mi camiseta vs Mis camisetas. Etc etc.
no way to know which meaning of camisetas to use tees, vests, t-shirts, tops,??????
If you look at the other words, you can see that they end with 's' That's how I decide which one I'll choose and it works!
Why mis and not mí. In previous lessons i had typed mí amigos and DL said it was correct. I'm a bit confused.
"Pretty" is a very strange word for t-shirts - maybe a lacy blouse or something, but t-shirts are casual. I just keep typing pretty b/c I don't know of an alternative Duolingo might accept.