E. We should make use of our time to do everything.
F. We shouldn't leave today's work for tomorrow.

    In China, safety education is becoming more and more important now. The last Monday in March is for students to learn it at school. {#blank#}1{#/blank#}  What are the accidents at school? Take a look.

    Stampedes(踩踏), earthquakes and fires are the main accidents at school.

    A stampede always happens in crowed places. When students around you begin to push, {#blank#}2{#/blank#} If you fall down in the crowd, move to one side and protect your head with you your hands around.

    When earthquakes happen, {#blank#}3{#/blank#} It'll protect you from falling things. If you are outdoors, find a place away from buildings, trees, and power lines.

    When there is a fire, {#blank#}4{#/blank#} It's better to put something wet over your mouth and nose. In this way, you won't breathe in smoke. Many people die in a fire, not because of the fire but smoke. {#blank#}5{#/blank#} That's very dangerous! So when you want to get out, you should make yourself close to the floor. Then you can breathe some fresh air.

    Mr Brown was at the theatre. He had got his ticket at the moment, so he had not been able to choose tis seat. He now found that he was in the middle of a group of American ladies, some of them middle-aged and some of them quite old. They clearly all knew each other well, as before the curtain went up on the play they bad come to see, they all talked and joked a lot together.

    The lady sitting on Mr Brown's left, who was about sixty years old, seemed to be the happiest and the most amusing of the American group, and after the first act(幕)of the play, she apologized to him for the noisiness of her friends. He answered that he was very glad to see American ladies so obviously enjoying their visit to England, and so they had a friendly talk. Mr Brown's neighbour explained what they were doing there.

    "You know, I have known these ladies all my life, "she said. " We all grew up together back in our hometown in the United States. They have all lost their husbands, and call themselves the Merry Widows(寡妇). It is a sort of club, you know. They go abroad every summer for a month or two and have a lot of fun. They always go everywhere together. I have wanted to join their club for a long time, but I didn't qualify(具备……的资格)for membership until the spring of this year. "

    There are many people helping to take care of others in every country. For example, some high school and college students in the United States often spend many hours as volunteers in hospitals, orphanages (孤儿院) or the old people's homes.

    They read books to the old people. {#blank#}1{#/blank#}Other young volunteers go and work in the homes of people who are sick. {#blank#}2{#/blank#}For boys who don't have fathers, there is an organization called Big Brothers. College students take these boys to baseball games or take them to go on trips. {#blank#}3{#/blank#}.

    There are a number of clubs in some cities. {#blank#}4{#/blank#}Some of these clubs show movies or organize short trips to the mountains, the beaches, the museums or other places of interest. Most of these clubs have a lot of high school and college students as volunteers because they're young enough to remember the problems of younger boys and girls.

    {#blank#}5{#/blank#}And they always do volunteer work happily.