1. We couldn't go to the concert because we did't have enough money=>..............
2. I lost my job because i was late for work=>..................
3. He didn't revise all his lessons, he failed the exem=> If he...........
4. Carol didn't answer the phone because she was studing=> If................
5. Martin failed his driving test last week because he was very nervous=> If....................
6. I didn't know her address, so i couldn't write to her=> If i................
7. they got wet because they didn't have an umbrella=> If they................
8. I couldn't call Sally because i lost her number=> If i.............
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