[ Adverb and Noun Clauses ]
………….. of all modern domestic poultry is the red jungle fowl is widely believed.
A. The ancestor
B. The ancestor is
C. How the ancestor
D. That the ancestor

Random Topics:
Grammar - to beComparative and Superlative AdverbsPast PerfectTenses and StructuresPassive Voice in Past and Present TensePrepositions after VerbsLinkers and ConjunctionsModals for Necessity and SuggestionsRelative & ModalsGerunds as objects of prepositionOther quiz:
Present Perfect and Past Tenses › ViewIdentify the sentence that uses the past perfect incorrectly:
A. She had finished her homework before dinner.
B. They had gone to the store before it closed.
C. He had saw the movie last week.
D. We had already left when the party started.
Grammar › View
Ahad and her team didn’t finish the project. _____________, they did work hard.
A. furthermore
B. so
C. however
D. instead
Articles › ViewMs Florida felt that her marriage had become ____ prison.
A. a
B. the
C. O
D. an
Conditional Sentences Type I, II › View
If I….. him, I would quit my job and start a business.
A. am
B. were
C. is
D. are