Teacher:In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Teacher: Now, understand the problem? Solve this instance: Clarence: In the babble of the world , there are whispers , if you know how to listen . The Doctor has a secret , you know .
Vastra: He has many .
Clarence: He has _ one _ he will take to the grave . And it is discovered .
Student:
secret