请评析漫画中人物的言行。 

    Everyone may make mistakes in his life, no matter how old he is. But not everyone knows what to do with them, especially the young people. Here is a story for you. You may find out the answer.

    There was a little boy visiting his grandparents on their farm. He was playing with a slingshot(弹弓) in the woods one day. He practiced a lot, but he could never hit his target(目标). He felt bored and went back for dinner.

    As he was walking back, he saw Grandma's pet duck. He used his slingshot one more time. He hit the duck in the head and killed it. He was very sad and afraid. He hid the dead duck in the woods. Then he saw his sister watching him. Sally saw it all, but she said nothing. After lunch that day Grandma said, “Sally, let's wash the dishes.” But Sally said, “Grandma, Johnny told me that he wanted to help in the kitchen today, didn't you, Johnny?” and then she said to him in a low voice, “Remember, the duck!” So Johnny washed the dishes.

    After several days of doing both his housework and Sally's, Johnny couldn't stand it any longer. He told Grandma that he killed the duck. She smiled, “I know. You see, I was standing at the window and I saw what you did. But I just wanted to know how long you would be your sister's slave(奴隶).”

    My friends, have you ever made such mistakes? As the saying goes, “Who can make no mistakes?” Next time when you do something wrong, you'd better say sorry to others. Others may forgive you, too.

根据短文内容，判断正误

请简要说明下列操作可能造成的不良后果

①倾倒细口瓶的药液时，标签没向着手心____②向燃着的酒精灯添加酒精____③滴管取用试剂后平放或倒置____

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；2）只允许修改10处，多者（从第11处起）不计分。

    I feel very lucky to have an English teacher like Jane. Though she is strict in us, we all like her. Not only does she teach us a lot of knowledges about English, but she has very good sense of humor. One day, she tells us that day's homework was optional, that meant we were free to choose whether to do it or not. On the next day, she asked whomever had done the homework to raise hands. Seen a few hands were up, she said, “all right, let's to turn to the page and see what your homework is.” When we turned to that page, some faces turned red immediate. That was a blank sheet of paper. What a smart way to test my honesty.