Let me tell you something about Mr Lu. He lives n to us. He is a Maths teacher. He is about forty years old and looks very strict (严格的) . In fact, after class he is very k.

    He always gets up very e and he always goes to w very early too. In class, he is very strict. If a student makes a noise, he will be very a. He always tells his students ,“We're ha Maths class now,aren't we? Don't make any noise, OK?”

    But when class is o,Mr Lu is very kind and f He always tells jokes to his students. His students are always very h because the jokes are very i.