Fill in the correct conjunction: because, but, and, after, before, while, when, if.
  
You may have several correct answers. Put a slash to seperate correct answers. If the sentence begins with that conjunction, do not forget to write it with a capital letter.
  
Example: Please turn off the lights _____ you go to bed.
  
Answer: before/when
 
I'll text you _____ I have arrived in London.
 
Answer: