The Pop Quiz

For high school boys(and girls)afflicted with spring fever skipped morning classes.After lunch they reported to the teacher that they had a flat tire . Much to their relif she smiled and said: " well, u missed a test today so take seats apart from one another and take out a piece of paper."
Still smiling ,she waited for them to sit down .Then she said :" First question :Whitch tire was flat?"  ^^"

can u give us a translation~

四高中生得了春倦症,於是就逃了早上的n.午後他告V老f他的爆胎了.]想到老笑著f:"好的,今天你e^了一次y,F在你分_坐下,然後拿出一."
等到他都坐下以後,老仍然微笑著f:" 第一},子的那胎爆
了."

the teacher is craftily