Topics: 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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Article & PrepositionModals and Active and Passive VoiceRegular and Irregular VerbsPresent / Future / Present Progressive / non Action VerbsModals and AdviceAuxiliary and Modal VerbsPassivisationAlthough / DespiteHave GotGrammar and Passive VoiceOther quiz:
Grammar › ViewAt 9 AM tomorrow, they ___ (take) the test.
A. will take
B. are taking
C. will be taking
D. took
Tenses › View
By next year, we ____ this project.
A. will complete
B. completed
C. will have completed
D. have completed
