17 put the verbs in brackets into the correct past tense.
1 a: did you see (you/see) fred at the airport?
b: no, he
(already/ check in) by the time i
(get) there.
2 a: the kidnappers finally (return) the child to
his parents yesterday.
b: thank goodness! they
(hold) the poor boy for
two weeks before they
(release) him.
3 a:
(you/do) anything interesting last night?
b: no, i just
.(watch) a dvd
(rent) the night before and then .. (go) to bed early.
4a: the police
(find) elizabeth's car last night.
b: oh? i
(not/know) she
(report) it stolen.
5 a:
(helen/help) you with the chores?
b: sure. while i (clean) the windows she
(vacuum) the carpets.