What day do you like? I like Friday. I have {#blank#}1{#/blank#} classes in the morning and {#blank#}2{#/blank#} my classes are great. My {#blank#}3{#/blank#}  class is Chinese. It's easy and fun. The second class is English. It is interesting {#blank#}4{#/blank#} me and I like it. My English teacher, Mrs. Wang, always {#blank#}5{#/blank#} English is very useful. That's for sure! Then I have a math class. I think math is really difficult. But my math teacher, Mr. Li, is a very nice man. I always ask {#blank#}6{#/blank#} for help. P.E. is the last class. Oh! It's my favorite, {#blank#}7{#/blank#} I can play ping-pong with my classmates. We always have a good {#blank#}8{#/blank#} in P.E. We have lunch {#blank#}9{#/blank#} class. I eat chicken and vegetables for lunch. I don't eat hamburgers. I want to be {#blank#}10{#/blank#} .

    On March 14, maths and science lovers around the world celebrated a special day: Pi Day.

    Pi is{#blank#}1{#/blank#} to3. 14, but the number goes on endlessly. It is sometimes written in Greek,π. With the help of computers, mathematicians have been able to {#blank#}2{#/blank#} pi out to over trillion (万亿) decimal places, but there is still no{#blank#}3{#/blank#} to the number. This makes pi puzzling, even for the most famous scientists and mathematicians.

    Pi Day is celebrated around the world on March 14, since how we write this date, 3/14,looks just like the number pi.

    For some people, the appeal (吸引力) of Pi Day goes far beyond maths and science. Pi shows up{#blank#}4{#/blank#}popular culture. You can see it in movies, comics, music and more. "In modern movies, any time the filmmaker wants to evoke (产生) a sense of mystery, often the symbol pi is used, "says David Blatner, Jewish American writer of The Joy of Pi.