Worksheet 2 - Give the correct past form of verbs in brackets.

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Across
  1. 4. In 1975, Bill Gates (leave)____ Harvard University to found Microsoft.
  2. 5. Thomas Edison (work)___ hard to make light bulbs in 1879.
  3. 7. In 2004, Mark Zuckerberg (become)___ the CEO of Facebook, a social networking site.
  4. 8. The German Johannes Gutenberg (have)___ an idea of inventing printing press.
Down
  1. 1. Alexander Fleming (invent)___ penicillin for antibiotics.
  2. 2. Professor Sarah Gilbert (make)___ AstraZeneca vaccine against the Covid-19 virus.
  3. 3. Alexander Graham Bell (get)___ the first patent for an electric telephone in 1876.
  4. 6. Zhang Yiming (decide)___ to launch TikTok,known as Douyin in 2016 in China.