Pregunta 85

An engineer designed the bridge. In the passive version, the bridge was designed … an engineer.

with
from
byRespuesta correcta
of

Explicación

By introduces the agent who performs the action in a passive clause. With normally introduces an instrument, so it cannot mark the engineer as the designer here.

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Pregunta 85: An engineer designed the bridge. In the passive version,… · English Prepositions · Questena