[ Tenses ]
The theory of relativity ____ a major breakthrough in 1905.
A. was
B. is
C. will be
D. being
Select your answer:
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Present Simple vs Present Continuous › ViewI’m sorry, she can’t come to the telephone just now. She …… a bath.
A. is having
B. has
Prepotitions of Time › View
You can visit us _____ December.
A. in
B. on
C. at