As the plane flew over, we saw the workers ... the new opera house.

A) to build
B) build

216. (v21 -116-6) As the plane flew over, we saw the workers ... the new opera house. A) to build B) build C) building D)being build

Ответ:

Сборник: Английский язык
Параграф: Gap filling (right form of the verb)

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