Is 'To Sign' Separable or Inseparable? - Phrasal Verb Quiz

Quiz for Verb: 'To Sign'

Is the phrasal verb 'To Sign' separable or inseparable in the following examples?

'Sign in' - Register in a hotel

'Sign off' - End a message

'Sign into' - Open a particular computer program that requires a name and password

'Sign off' - Give someone a letter to be away from work

'Sign off on' - Give official approval

'Sign on' - Employ

'Sign on' - Start broadcasting

'Sign in' - Write your name when entering a place

'Sign on' - Open a claim for unemployment benefit

'Sign off' - Close a claim for unemployment benefit