[ Vocabulary ]
energy sources formed over millions of years from the remains of dead organisms
A. energy conservation
B. fossil fuels
C. renewable resources
D. human impact
E. sustainability

Random Topics:
Comparative AdjectivesPresent & Past TensesGrammar - QuantiflierInfinitive FormsAdverb Clause ConnectorTenses and ArticleGerunds + To InfinitivePassive VoicesActive-Passive VoicesAction, Helping & Linking VerbsOther quiz:
Grammar › ViewFatehah hurt her finger when she __________ dinner last night. She accidentally __________ it with a sharp knife.
A. prepare, cuts
B. prepared, cut
C. prepares, cut
D. prepared, cuts
Present Simple Tense › View
Simouy and Channa________ (no, work) on Monday.
A. doesn’t work
B. doesn’t works
C. don’t work
D. don’t works
Tenses › View________ my neighbors were having a picnic, the rain started to pour down
A. when
B. while
C. during
D. before
Grammar › View
The poor helpless orphans _______________ away by the strong tidal waves.
A. sweep
B. were sweep
C. were swept
D. was swept
