I told the other three that they didn't seem to be sick to sit down and sit down without debate. The boy I sent to the toilet came back, without any signs of nausea, who sat down and worked. and worked. I was glad that I was able to solve the situation and guessed it correctly. One very problematic student signed up for this.
The boy I sent to the toilet returned, without any signs of nausea, he sat down and worked.