[ 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:
Tenses › ViewA: Why did you buy this material?
B: I ……………………………… (make) a skirt for myself.
A. will make
B. am going to make
C. am making
D. make
Verb Tenses › View
Dave________ down stars and _______ his leg.
A. fall, break
B. had fallen, had broken
C. fallen, broken
D. fell, broke
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
