[ Grammar ]
I…………………my keys. I can’t find them anywhere.
A. have lost
B. lost
C. had lost

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A. to go
B. going
a, an, the, Zero Article › View
Einstein is known for his theory of ___ relativity.
a. a
b. an
c. the
d. X [Nothing]
What does the word ‘effect’ mean?
A. something that happens as a result of something else
B. alike in appearance or nature, though not identical
C. to point out; also to serve as a sign or symbol of something
D. a detailed examination of the components of a subject to understand its meaning and/or nature as a whole
Grammar › View
The girl sang ———-
( fill in the blanks with the given words )
A. sweet
B. rough
C. sweetly
