Ответ:

a) As Sophie was walking up Regent Street she met an old friend from college.

b) When did your father arrive yesterday?

He arrived late. The train was delayed due to an accident.

c) Who were you speaking to on the phone when I came in?

d) Mary was reading in bed when she heard a strange noise downstairs.

e) When Mr. Lawrence left home at 8.30 this morning, the sun was shining brightly. However, by 10 o´clock

it was raining heavily.

f) Sebastian arrived at Susan´s house a little before 11 a.m., but she wasn´t there. She was studying at the

library.

g) The fireman rescued a 75-year-old woman who was trapped on the second floor of the burning building.

h) Did you do any shopping yesterday?

i) Yesterday Jane fell and hurt herself when she was riding her bicycle.

j) What was Peter doing when you knocked on his door?

k) Helen was wearing her dress to the party last night.