Most likely passage for the test, p.197:
'The mother,' said the woman, making a more violent effort than before, -- 'the mother, when the pains of death first came upon her, whispered in my ear, that if her baby was born alive, and thrived, the day might come when it would not feel disgraced to hear its poor young mother named. "And oh, my God!" she said, folding her thin hands together, "whether it be boy or girl, raise up some friends for it in this troubled world, and take pity upon a lonely desolate child abandoned to its mercy!"'
Context: We hear a deathbed confession of the woman who stole from Oliver Twist's mother. This gives us a clue to Oliver's parentage.