сделать во с хвостиком

1 Last week they visited many interesting places , ...

2 They have been happy in this host family , ...

3 His parents are very kind , ...

4 Ann will ask them three questions, ...

5 Tom and Tim were close friends, ...
и можете объяснить правило

1 Last week they visited many interesting places , didn't they?

2 They have been happy in this host family , haven't they?

3 His parents are very kind , aren't they?

4 Ann will ask them three questions,won't she?

5 Tom and Tim were close friends, weren't they?

Объяснение: