TASK DEFINITION: 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.
PROBLEM: Optimus Primal:  Every one of these alien structures has been designed for a specific purpose , Rattrap . This _ one _ is busy , and I 'm betting I can fly close enough to take it out .
Rattrap: With what ? One of your famous " We can do it " speeches ?
Optimus Primal: A transwarp explosion .
Blackarachnia: Hahaha ! You 'll blow yourself to atoms !
Optimus Primal: If it saves this planet , it 'll be worth it . If not , I 'm no worse off .

SOLUTION: structures

PROBLEM: Gray Jackson:  No girl should have to hide her head under a scarf .
Layla Hourani: Some girls prefer the hijab . Makes them feel protected .
Gray Jackson: Oh , yeah ? Did you wear _ one _ ?
Layla Hourani: Please . I was deep into grunge .

SOLUTION: hijab

PROBLEM: DCI Janine Lewis:  No parent can know what their daughter is up to all the time , believe me , especially _ one _ that 's s busy as you are .

SOLUTION:
parent