2011年8月5日晚，在武汉一家饭馆打工的小曾在洗盘子时，右手大拇指和无名指不慎被摔破的盘子割伤。由于伤口较深，工友将他送到一街之隔的武汉市某医院。进行缝合手术后，医护人员要求工友吴师傅交1830元的医疗费。吴师傅因钱不够，想第二天补上，遭到院方拒绝，随即院方将小曾已缝合好的伤口予以拆线。

—How about the book you are reading?
—Good indeed. It          many problems we have come across in our study.

在一个种群基因库中，某个基因占全部____  数的比率，叫做基因频率．

 进入初中后，班主任告诉我们：走进中学，同学们就将进入了青春期，你会发现自己每天都在变。同学们要学会认识自我。我们每个人的潜能犹如一座有待开发的巨大金矿，希望同学们把自己的潜能充分挖掘出来……

阅读上述材料，回答：

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。

    Life is a mystery and we will never know that is waiting for us. But one thing is for sure: problems are unavoidable. For us, it's the process of solving problems that help us grow.

    Making a speech in public used to make me frightening. With a strong accent and terrible pronunciation, I failed in speech competition many times, but I didn't lose my heart. I was admitted by the school speech club. I considered it a good chance for me to improve myself. With a help of others, I recorded my speech, listening to it and corrected my pronunciation. Now I am confident enough to give my best speech to you all.

    Don't afraid of problems, but make use of it to be the best of ourselves!