如图甲是一枚简单的液体燃料火箭结构图，小明所在班级以“火箭中的科学奥秘”为主题开展了系列活动。

短文改错。

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

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。

    It is Mother's Day today.Though it's a western festival, it's popular in China now.

    Mom has a full-time job,so she has to do most of the houseworks.She is a great mother.Both Dad or I planned to do something on Mother's Day.We get up early in the morning.Dad cleaned the house,and then went on shopping.When he came back,I found a bunch of flowers in her hand.I asked Mom to stay in the sitting room and I cooked in kitchen.The dishes what I cooked were Mom's favoritiest.At dinner,we said to her,“Happy Mother's Day！”Mom was grateful and moving.

新能源的开发和利用是能源研究的主要课题，太阳能电池是将太阳能转化为____ 能；核电站是利用____ 能来发电的．