Решение:
He ... troubled yesterday.
a) looked b) is looking c) had looked
They ... football from 2 p. m. till 5 p. m. yesterday.
a) played b) were playing c) had played
He ... his work by that time.
a) Finished b) was finishing c) had finished
What ... you ... at 7 p. m. yesterday?
a) Did ... do b) were ... doing c) had ... done
Where ... you ... your summer holidays?
a) Did ... spend b) were ... spending c) had ... spent
How many countries ... they ... by that time?
a) Did ... visit b) were visiting c) had visited