Past Tenses №2

Underline the correct tense:

Выберите правильную форму глагола:
1 Lynne was singing/had sung as she was cleaning the windows.
2 Mr Todd was teaching/had been teaching for thirty years when he retired.
3 I phoned Jack because I wanted/had wanted to ask him a question.
4 They had walked/had been walking for hours when they stopped for a rest.
5 The shop had been selling/had sold the table by the time I got there.
6 Joe was happy. He was winning/had won first prize in the competition.
7 It was raining/had rained while they were playing the football match.
8 Rob was opening/opened the box and looked inside.
9 Eve was delighted to hear that she was getting/had got the job.
10 People used to work/were working very long hours in those days.
11 I was running when I slipped/was slipping on the ice.
12 They were already buying/had already bought the tickets when they went to the concert.
13 Carol had broken/was breaking her arm, so she couldn’t write for six weeks.
14 We had been staying/stayed in a hotel by the sea last summer.
15 Elvis Presley sang/had sung lots of hit songs.
16 I opened/was opening the door and stepped outside.
17 They had stood/were standing outside when the results were announced.
18 Alexander Graham Bell had invented/invented the telephone.
19 She broke the glass while she had washed/was washing it.