Identify the preposition(s) in the following sentences.

Which is NOT a preposition?

He looked in her eyes and saw the truth.

They gazed into the night sky.

Up on the roof, the men worked in the hot sun.

Too many people on the porch made it fall.

Which is NOT a preposition?

She looked through the looking glass.

We ran through the maze in the huge room and jumped into the boxes on the floor.

They took the bus to the town.

He casually made a comment about her hair.

Which is NOT a preposition?

Into the forest we walked on the path.

Underneath our feet, we trudged through the mud and across the valley.

Which is NOT a preposition?

He sat under the bridge.

Over the bridge we saw a rainbow across the sky.

Which of the following is NOT a preposition?

Many people have difficulty with reading.

For a little while, she sat alone with her dog.

The students in the picture were smiling.

In the middle of the night, we heard a scream across the street.

They stood under the bridge with their umbrellas.

They saw the movie A Cat on a Hot Tin Roof.

People were upset about the meeting.

They knew the culprit was among them in the crowd.

Where does a prepositional phrase end?