Student or Learner
We call on people to be aware of how severe the situation is and do something about it.
Shall I have the preposition"of" in front of a "how"-clause?
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
Should I have the preposition"of" in front of a "how"-clause?
This is more natural to me.