A 4-word composition associated with smell and hearing

It was when we were in the fourth grade. One afternoon, the head teacher, Mr. Wang, called us to the office, gave each of us a piece of manuscript paper for the calligraphy competition, and said to us, "Recently, the school is going to hold a calligraphy competition. You two usually write well, but this time each class can only have one place to participate. You can each write a work and give it to me at once, and I will choose a good manuscript to participate in the competition.

At that time, my heart was filled with joy. Before the teacher finished, we ran back to the classroom quickly. Picked up the pen and began to write. "Yeah, it's done." I stood up and had a big stretch. I turned my head and saw that you were still absorbed in writing. I quietly walked over to your side and took a look at your work. It's really good. It's really better than me. I thought to myself, "That's it. I can't take part in the competition this time. What can I do?" Suddenly, a terrible bad idea came into my mind. Yes, just do it. " I went back to my seat, painted my finger with ink, and then went to Xiaoming's side: "Dude, have you finished writing?" Take a break and I'll hand it in for you. " You gave me the manuscript unsuspecting.