Question

1. has / Misha / in the sea / swum /.
2. you / met / famous / have / people /?
3. built / never / has / he / a house /
4. just / they / have / in the park / walked​

Answer 1

Misha has swum in the sea.

Have you met famous people?

He has never built a house.

They have just walked in the park.

4. been

5. yesterday

6. haven't played