下面文中共有10处语言错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（^），并在该句下面写出该加的词。

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：

Patience is of great importance in our daily life. Once I waited a bus to come at a stop. 30 minutes past, but no bus came. Both upset and annoyed, I decided to walk on feet. But no sooner had I left when the bus arrived. I thought if I had waited for one more minute, I would have caught it. If I chose to take a next bus, I would have to wait for other 30 minutes. Only then do I realized my problem. Being impatient will possible waste all the effort that we have put it in. now whenever I am close to lose my patience, I’ll think of this experience.

下列说法最科学的是（　　）

A．现代的食品保鲜方法就是添加防腐剂

B．保持正常的呼吸是贮存食品的重要方法

C．乳酸菌发酵过程中能产生乳酸和二氧化碳

D．白酒的酿造过程中利用了霉菌和酵母菌两种微生物