Put the verbs in brackets into the past continuos or the past simple.

In 2004, 23-year-old Mark Zuckerberg, 1) (launch) Facebook while he 2) (study) at Harvard University. People 3) (want) a university website with students profiles, so Mark 4) (decide) to do something about it. 1,200 students 5) (sign up) within 24 hours! He then 6) (expand) the site to include other universities. Mark 7) (face) some difficulties, though. Three Harvard seniors 8) (insist) that while Zuckerberg 9) (work) on a similar project with them, he 10) (use) their ideas to create Facebook. This 11) (not/stop) Mark, though, and Facebook soon 12) (become) the biggest social networking site in the world with 500 million users to date.

In 2004, 23-year-old Mark Zuckerberg, launched Facebook while he was studying at Harvard University. People wanted a university website with students profiles, so Mark decided to do something about it. 1,200 students signed up within 24 hours! He then expanded the site to include other universities. Mark was facing some difficulties, though. Three Harvard seniors insisted that while Zuckerberg was working on a similar project with them, he was using their ideas to create Facebook. This didn't stop Mark, though, and Facebook soon became the biggest social networking site in the world with 500 million users to date.