[ Tenses ]
A new species of bird ______ in the Amazon rainforest by a team of biologists 2 years ago.
A. has discovered
B. is discovered
C. was discovered
D. has been discovered

Random Topics:
Prepositions and Phrasal VerbsCardiology ServicesPreposition & Relative ClausesTOEIC GrammarGrammar CorrectionPassive Voice and Relative ClausesAdverbs of Frequency and Everyday ActivitiesVerb IdentificationDescribing WordsMixed GrammarOther quiz:
Prefixes Suffixes › ViewJen _______ (dye) her hair blonde.
A. dying
B. dyeable
C. dyeful
D. dyed
Future Continuous Tense › View
At midnight we __________________ .
A. will be sleep
B. be sleeping
C. will be sleeping
