下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。
增加：在缺词处加一个漏字符号（∧），并在该漏字符号下写上该加的词。
删除：把多余的词用斜线（ \ ）划掉。
修改：在错的词下划一横线，并在该横线下写上修改后的词。
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。
Last Saturday, mom and I went to buy a down jacket for my grandpa. When we got to a big store, we saw down jackets of vary colours and styles. There were so many of them that it spent us quite a while to decide which one to buy. Finally, under the help of the shop assistant, he selected a black thick jacket for grandpa. Immediately, we returned back home to show itto my grandpa. Seeing it, he was very happy and couldn’t wait to put on. But we were annoyingto find something was wrong with the zipper. Hurriedly, I took it back to the store and explained the shop assistant the problem To my satisfaction, she is very kind and helped me choose another one patiently. Stand in front of the mirror, my grandpa looked at himself in the new coat, smilingcontently. How delighted I was! vary改成various
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(答案→)vary改成various
解析：文章介绍上周六和妈妈一起上街给爷爷买夹克的事情，虽然有点小插曲，但是结果令人满意。
【小题1】vary是动词“不同”，这里修饰colours用形容词various“各种各样的”
【小题2】spent的搭配是“spend time （in） doing”， took才是用take sb time to do sth “花时间做”
【小题3】在…的帮助下，with the help of，under改成with
【小题4】这里用he指代作者的爷爷，他回家把夹克给奶奶看。
【小题5】return=go back“回来”， back是多余的
【小题6】句意：爷爷很高兴，迫不及待的把夹克穿上。Put后面加it指代“the jacket”
【小题7】句意：我们发现拉链坏了很生气。Annoying一般修饰物，改成annoyed修饰人
【小题8】explained后面加to，因为“向某人解释”是expained to sb sth
【小题9】这个故事是发生在上个星期六，所以是过去时：is改成was
【小题10】句意：站在镜子前面，爷爷看着自己穿着新衣服，满意的笑了。stand改成standing是现在分词做状语。