Put the verbs in the correct form of the present perfect.

Ответ:

1.We have visited.

Have not been.

2.Have you ever eaten .

I have heard.

3.I have never travelled.    

4.Have you ever explored

I have not seen.

Present Perfect образуется с помощью have/has + Ved или третья форма глагола, если глагол неправильный.