They ………of the chemical elements: carbon, hydrogen, oxygen.

Выберите один ответ:
a. has been composed
b. are composed
c. is composed
d. composes

Ответы

Ответ дал: gulimgan75
2

Ответ:

They are composed of the chemical elements: carbon, hydrogen, oxygen

Ответ дал: haker755
2

Ответ:

they are composed of the chemical elements: carbon,hydrogen,oxygen

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