Fil in:have,has,was,were
1) ... you ever been to the Kremlin?- Of course, we ... .We ... there last Sunday.
2) My littile sister ... not been to the zoo yet.. your littile brother been there?- Yes he ... .He .. at the zoo last weekend. But i ... not been there for ages .Let s all go together. It s worth visiting im May
3) They ... already been to the museum . They .. therer last month.