1) Our professor prefers _____specimens to working in the laboratory. a) inventing b) collect  c) collecting 2) Albert Einstein ______ important theories. a) did b) developed c) discover 3) He _______ a new planet that no one knew about before! a) invented b) discovered c) collected 4) Scientists spend a lot of time just ______ their experimental objects. a) to observe b) to look at c) observing 5) Do you prefer______notes on a smartphone or a piece of paper? a) to take b) taking c) making d) doing 6) Who _______ television in 1925? a) discovered b) invented c) found d) made 7) Today we can _____ research on the internet. In the past it was very difficult! a) make b) do c) discover 8) Who _____ experiments with radioactive materials? a) made b) took c) did

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