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Complete the sentences with the past simple passive tense of the verbs from the box. (to develop, to make, to build, to discover, to invent, to construct, to launch, to use) 1. the first rocket by r. goddard in 1926. 2. television in 1930. 3. the theory of relativity by a. einstein. 4. the first bicycle in 1839. 5. the steam engine by george stephenson. 6. the radioactive elements radium and polonium by marie curie. 7. hot baths and central heating first by the romans. 8. the first step on the moon by neil armstrong.

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Complete the sentences with the past simple passive tense of the verbs from the box. (to develop, to...

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