Надобно подставить слова дам 50 балов Complete the sentences with have,has,was

Надобно подставить слова дам 50 раутов
Complete the sentences with have,has,was and were.
1) .........you ever been to the Kremlin? - Of course we ..... . We ...... there last Sundey.
2)My little sister ...... not been to the zoo yet. ....... your little 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 in May /
3) They ......already been to the museum. They ...... there last month.