[Q]: How does the sentence end?

The school insisted on a dress code for the student body, because the 

[A]: school was formal.


[Q]: How does the sentence end?

Emily has a chronic diarrhea so she goes to doctor Betty for an advice, because 

[A]: Emily feels miserable.


[Q]: How does the sentence end?

Air travel bugs Nick, which isn't the case for Hunter, as a result of 

[A]:
Nick getting air sickness.