1.She worked for this company. After 25 years she retired. ( : 1) 2.The orchestra began playing. After ten minutes a man ran into the hall. ( : 1) 3.My sister studied French. Then, after five years, she went to France. ( : 1) 4.Margaret went to the park. After ten minutes she realised she had forgotten to close the door. ( : 1) 5.We sat down to dinner. After five minutes the door-bell rang. ( : 1) 6.We settled down in London. After a fortnight our two cousins joined us. ( : 1) 7.Mother started cooking dinner. After ten minutes Hazel came to help her. ( : 1) 8.The family began watching an interesting film. After half an hour the TV broke down. ( : 1) 9.We had arranged to meet in the cafe. I came and began waiting. After fifteen minutes I realised that I had come to the wrong cafe. ( : 1) 10.Brian was trying to fix his car. After three hours he gave up the idea.
B: Yes, it is. If it b) was frozen, we could have gone skating.
2 A: Haven't you got enough money for a holiday?
B: Oh yes. I've got some saved up b) in case I suddenly need it.
3 A: What are you going to do next year?
B: I wish I a) knew the answer to that question.
4 A: These figures are too complicated to work out in your head.
B: Yes, if b) only we had a calculator.
5 A: What are you doing later this afternoon?
B: Oh, b) in case the game finishes, I'll go home, I expect.
6 A: Do you think I should take the job?
B: You shouldn't do anything c) unless you think it's the right thing to do.