• Home
  • In 1979, a discovery of ancient human footprints caused a major scientific breakthrough.
Question 1:
In 1979, a discovery of ancient human footprints caused a major scientific breakthrough. The ....... prints dated*^*back 3.6 million years and proved that people were able to walk on two legs.
A. fossilized
B. formerly
C. forthright
D. fortuitous

These questions are from this test. Would you like to take a practice test?

Origins of Man | C1 – Advanced