The idiomatic expressions are highlighted in the sentences below. 
If he doesn't get his act together, he'll be forced to leave the school.My boss will hit the roof if those papers are not found.At dinner with my roommate and his girlfriend, I felt like a third wheel.He gave us some song and dance about why the work wasn't finished.This is his third offense and the police should throw the book at him.Our offense was able to run circles around their defense.Before giving my speech in front of the whole class, I had butterflies in my stomach.When the lunchroom is busy, the cafeteria workers run around like chickens with their heads cut off.After giving that crazy lecture that made no sense, we thought our teacher was off his rocker.If you think that I stole your jacket, you're barking up the wrong tree.Physical exercise is a good way to blow off some steam.Instead of burning the candle at both ends, you need to cut back on some of your activities and commitments.During final exam week, many students will burn the midnight oil.Finding a contact lens on a crowded dance floor is like searching for a needle in a haystack.Dad accusing you of eating too much is like the pot calling the kettle black.One day, out of the blue, I got a call from a friend I hadn't heard from in years.How does he pay the bills when his business is always in the red?He seldom pays attention in class and it seems that his head is off in the clouds.Unprepared for class, the student teacher had to fly by the seat of her pants.He didn't use complete sentences until he was 4 years old, but then no one could get a word in edgewise.
give 30 example of idiomaticexpression