Answer:
I will ask John if he knows the address.
Step-by-step explanation:
From the following options:
*Inquire
*Require
*Question
*Ask
The most accurate option to complete the sentence is "ask", and even when ask, inquire and question may be considered synonyms they are used in very different grammatical and functional contexts. Ask refers to the action of requesting information and inquire is more critical and it is normally used in the field of research. Question refers to the act of interrogate a person and finally require is to demand something that is necessary.