Practice common fixed expressions and collocations
Q1. I am ___ love with this song!
IN love is a fixed expression. Grammar delights in these arbitrary decisions.
Q2. Please be ___ time for the meeting
ON time is a fixed expression meaning punctual. The British invented punctuality specifically to have something to be disappointed about.
Q3. Who is ___ charge of this project?
IN charge is a fixed expression meaning responsible. Someone must be. Unfortunately it is usually you.
Q4. We arrived ___ the last minute
AT the last minute is a fixed expression. Drama is best saved for the final moment.
Q5. She is ___ holiday in Spain
ON holiday is a fixed expression. One is never IN holiday. That would suggest being trapped inside the concept of holiday itself.