They _______ (not eat) so we ________ (go) to a restaurant.
hadn't eat / gone
didn't eat / went
hadn't eaten / went
didn't eat / had been
I _______ (not have) breakfast when he _______ (arrive).
haven't / had arrived
hadn't had / arrived
didn't have / had arrived
haven't had / arrived
He _______ (not use) email before, so I _______ (show) him how to use it.
hadn't used / showed
didn't use / showed
didn't use / had showed
hadn't use / showed
