Odpowiedź:
16) Dorothy was travelling by train when I called her.
17) Anna spent a few days in hospital after she had fallen over in the street.
18) Howard was cooking lunch while his children were playing in the garden.
19) Edward and Michael were fighting when I saw them.
20) Steven found a gold coin in an old box which his great-grandfather had brought from India.
21) I didn't make sandwiches because Sandra had forgotten to buy bread.
22) Agatha was reading a book while David was playing computer games.
23) Samantha was giving a presentation when the projector stopped working.
24) Rebeca went home because her mother had called her.
25) Before Christina understood) the problem, the client had had to explain it very carefully.
26) Julia was walking in the park when she met her cousin.
27) I didn't go out because it was raining heavily.
28) He became a basketball player because he was very tall.
29) His mother grounded him when he had failed his English test.
30) They read the manual after the printer had stopped working.
Wyjaśnienie: