.............. of all modern domestic poultry is the red jungle ...

★ 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

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………………is a narrow strip of woods along a stream in an open grassland.

A. Ecologists use the term “gallery forest”

B. What do ecologists call a “gallery forest”

C. “Gallery forest” is the term ecologists use

D. What ecologists call a “gallery forest”