Please help me. are these first three sentences correct?

Translate the english subject pronouns to spanish and type them in the spaces below. when the subject is a0 i a1 you-familiar singular a2 he a3 we, feminine a4 you-formal plural a5 you-plural, feminine

Which phrase best completes this sentence? en los almacenes están al aire libre. a. el supermercado b. el mall c. la feria artesanal d. la librería

Which verb form correctly completes this sentence? nosotros que la pintura es de muy buen gusto. a. pienso b. piensan c. pensáis d. pensamos