Complete the sentences with the Past Simple form of the verbs below.
<discover, help, invent, marry, paint, start>
1. Mother Teresa poor people in Calcutta.
2. Leonardo da Vinci the Mona Lisa.
3. The French Revolution in 1789.
4. Copernicus the solar system.
5. Henry 13 of England six times.
6. Alexander Bell the telephone.
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