Odpowiedź:
1 fell, while
2 was reading, heard
3 were you watching, phoned
4was waiting, arrived
5was cleaning, asked
6costs
7was still burning
8got
9discovered
10was waiting, saw
11went, visited
12 was preparing, arrived
13was sleeping, heard
14were sailing, came
15came
16was driving, was talking
17was having, rang
18arrived, was already flying
19went, had
20were warming, were waving
Wyjaśnienie:
długa czynnosc - past continuous, przerywana krotka - past simple
