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.

一体积为0.1×10^﹣3米³的物体完全浸没在水中，求它所受到的浮力．

下列函数中哪个与函数y=x相等（　　）

 材料：体育课前，陈大明和马天宇先后从教室跑向操场。陈大明猛一关门，震碎了门上的玻璃，陈大明稍一停顿，便跑向操场。马天宇见状犹豫了一下，顺手拿起扫帚扫起了碎玻璃，李老师正好从门前走过，不由分说地批评马天宇不爱护公物，马天宇感到委屈。阅读材料，回答下列问题：