Complex sentence: She was a speaker at the 2008 and 2009 World Creativity Summits in Taiwan and Newcastle and keynote speaker at Drama Australia's 2010 Conference in Perth and presented in June 2011 at the first Drama in Education Conference in Singapore.
Split into simpler sentences: She was a speaker at the 2008 and 2009 World Creativity Summits in Taiwan and Newcastle and keynote speaker at Drama Australia's 2010 Conference in Perth. She presented in June 2011 at the first Drama in Education Conference in Singapore.