3 . 他喜欢数学，而我更喜欢英语。
He likes math, _______ English.

4 . The sweater she bought was beautiful _________   _________(与其……不如) cheap. （根据汉语意思完成句子）

5 . 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：在错的词下画一横线，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。

Last Tuesday was a special day, the Earth Day. My classmates and I do a series of activities to arouse for the awareness of protecting our planet. We watched a movie, what made us realize that the earth is getting hotter but the ice at the North Pole is melting. Then we excited went to the park to plant trees. But digging holes for trees was such hard thing that we were all tired. In the afternoon, we collected cans, bottle and newspapers, and then took it to the recycling center. We donated the money we earned to a charity calling “We Are Together.” It was really a meaning day.