Which sentence includes an infinitive phrase?

Question

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2 points
The cookies, baked this morning, were all gone by five o'clock.
Bird Watching with binoculars is a popular pastime.
My assignment was to examine a social issue and to take a position on the topic.
Geese live in flocks while cattle live among herds.

Answer 1

My assignment was to examine a social issue and to take a position on the topic.