[ Present Perfect Simple & Continuous ]
It’s known that the universe ______, and this will continue to happen in the future, too.
A. expanded
B. expanding
C. has been expanding
D. was expanding
Select your answer:
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Modal Auxiliaries › ViewYears ago, people _________ only travel to Antarctica by ship.
A. could
B. must
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I’m looking ___ to visiting my relatives in California.
a. for
b. forward
c. up