Choose the option that correctly completes all blanks below, respectively:
I. – Jane hit the _________on the head when she said most people can use a computer without knowing how it works.
II. – They tied themselves up in _______ over the seating arrangements for the party.
III. – You’re going to have to ________ down to improve your grades if you want to get into a good college.
IV. – She came to the United States thinking it was the land of milk and __________.
V. – Their approach to sports teaching broke the_________.