Thankfully, when we arrived at the station, the train DIDN'T LEAVE / HADN'T LEFT yet.
HADN'T LEFT
Mike was excited because he HAD NEVER SEEN / HAD NEVER SAW / NEVER SAW snow before.
HAD NEVER SEEN
I HAD BEEN LOOK / LOOK / HAD BEEN LOOKING / LOOKING for a flat for ages when I finally found this one.
HAD BEEN LOOKING
