instead of     dresses up     ride my bike     give up     hang out       in person

1.I always {#blank#}1{#/blank#} o school, and I think it's a good way to keep healthy.

2.Students should find good methods to study{#blank#}2{#/blank#} doing lots of exercises.

3.Mulan{#blank#}3{#/blank#} like a boy and takes her father's place to fight in the army.

4.The teacher advised the parents to talk with their son{#blank#}4{#/blank#} yesterday.

5.My mother often told me not to{#blank#}5{#/blank#} with my friends on school nights.

    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.

What are computers?

    Computers are wonderful machines. They can store information and solve problems.

    Computers come in all sizes. Some are small enough to fit into our {#blank#}1{#/blank#}; others are so big that the can fill{#blank#}2{#/blank#}.

    Some people say that computers can think themselves. This is not true. Human beings give computers instructions and tell them{#blank#}3{#/blank#}.

    However, computers can do things better than people. They can store {#blank#}4{#/blank#}information and never forget it. They work out difficult problems very, very quickly-usually{#blank#}5{#/blank#}than any human being.

    You may have used computers such as a pocket calculator, {#blank#}6{#/blank#}or a personal computer. If not, why not learn{#blank#}7{#/blank#}right away？