[ 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:
Infinitives and Gerunds › ViewShe appears ___ confident during the presentation.
A. to be
B. being
Simple present/ past/ future tense › View
I ______ (send) you the information when I get it.
A. sent
B. sends
C. send
D. will send
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
