1. A : have you thrown those old love letters away?
1. A : have you thrown those old love letters away? B : i don't remenber but they _______ (should - not - thrown away) in my opinio 2. A : your cat doesn't look well B : you're rihgt. It doesn't. It should______(take) to the vet. 3. A : have they sold their old car? B : i think it ______ ( could - sell) if it didn't cost so much¡.