[ Tenses and Pronouns ]
Scientists believe that they _____ (travel) to the space one day.
A. travel
B. will travel
C. traveled
D. has traveled
Select your answer:
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Vocabulary › ViewWhat is the meaning of moor?
A. attach and anchor
B. large and sturdy
C. to die
D. rushing downpour of rain
Grammar › View
He solved the problem…………………………two minutes.
A. At
B. In
C. For