be/have/do and regular/irregular verbs

Pytanie 1
I [...] starting university in autumn.
Pytanie 2
Frank isn't at work at the moment. He [...] gone to Switzerland for a conference.
Pytanie 3
The Channel Tunnel [...] built between 1985 and 1994.
Pytanie 4
Phillip [...] eat meat. He's vegetarian.
Pytanie 5
We [...] been to Toronto before. This is our first time in Canada.