Сomplete the sentences with have, has, was and were.

1)... you ever been to the Kremlin? - Of course we ... .We ... there last Sunday

2) My little sister ... not been to the zoo yet. .... your littel brother  been there? - Yes,  he ... . He ... at the zoo last weekend. But I ... not been there for ages. Lets all gotogether. Its  worth visiting in May.

3)They ... arleady been to the museum. They ... there last month.