In the . . . . . . . . example, you can see how it works.

. . . . . . . . which class do you read? Which preposition is suitable to fill the blank?

She was a devoted wife and looked . . . . . . . . her husband.

He took his brother . . . . . . . . the hand.

She is gifted . . . . . . . . common sense.

Please wait for me . . . . . . . . 8 o'clock.

He was busy . . . . . . . . his office work.

The Golden bridge is . . . . . . . . the Narmada.

Were you . . . . . . . . Tom's party last night?