[ Definite vs Zero Article Abstract Nouns ]
___ alternative energies that have been most recently developed are superior to previous ones.
A. the
B. (-)
Select your answer:

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Verb Tenses › ViewMozart_______ 600 pieces of music.
A. writes
B. have written
C. wrote
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Javanthi ___________________ her plane at the weekends.
A. flies
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