Did captain James Cook explore the western coast of Australia in 1770?
















































Did they watch a historial film last week?
















































Did the first spacecraft land on the Moon in 1969?
















































Did the Neolithic begin twelve thousand years ago?
















































Did Mary Leakey discover any prehistoric animals in Africa?
















































Did her cousin George have a car accident last year?
















































Did their car break down during a trip to the beach?
















































Did they kill a lot of teachers during the "Cultural Revolution" in China?
















































Did that woman hear any gunshots last night?
















































Did he do them a great favour yesterday?