С) заранее )) 1) did you know that george washington had (wood) teeth? 2) the old astronomer patiently made his (observe) and wrote down what he saw. 3) (research) have announced that a major breakthrough has been made. 4) i'm planning to train as a (psychology) when i grow up. 5) that red (build) over there is the science department. 6) the scientist said she had an announcement of international (important). 7) science weekly has a special (introduce) offer - the first issue is free! 8) if there are aliens out there, do you think they are much more (technology) advanced than we are?
Observation
Researchers
Psychologist
Building
Importance
Introduction
Technologically