[Grammar] be/go on a trip

[sitifan]

1. I was on a trip with my friends. (by a Taiwanese teacher of English)
2. I went on a trip with my friends. (by a Taiwanese teacher of English)
3. I was on a trip to Canada last month. (by a Taiwanese teacher of English)
4. I went on a trip to Canada last month. (by a Taiwanese teacher of English)
Are the above sentences acceptable to native speakers?

 

[tedmc]

I & 3 are not complete wihout further information (to say what happened).

 

[emsr2d2]

They are all acceptable and are complete sentences. They could easily be the answer to a question such as "Where were you [last month]?" or "Where did you go [last month]?"