[ Vocabulary ]
He then worked on peaceful applications of __________ that can substitute fossil fuel for a clean environment.
A. navigation
B. mantle
C. mutations
D. nuclear energy.
Select your answer:
Random Topics:
Articles & Compound NounsMust Vs Have toVerbs – Nouns – Adjectives - AdverbsWorld Literature VocabularyPresent Simple & Present Progressive TenseGrammar Like & Linking VerbGrammar SuffixesIf ConditionalsPast Simple, Past Continuous, Past PerfectOther quiz:
Definitions, Synonyms › ViewCritical
A. Incriminating
B. Disparaging
C. Cynical
D. Exacting
Comparative Degree (Adverb) › View
Out of all my subjects, I have to agree that I do ________________ in Spanish.
A. Bad
B. Worst
C. Badest
D. Badder