Read the following paragraphs and identify the sentence that is not appropriate in each of the paragraphs. 阅读以下段落，选出每一段中不合适的句子删除。(1)College is more expensive than high school because of tuition, living expenses, and books. (2)Anyone who wants to attend college must pay fees first. (3)College tuition is usually higher than high-school tuition. (4)It can start at roughly $1,500 per term while high schools are usually funded by governments. (5)High school students have no living expenses because the majority of high school students live at home with their parents for free. (6)College is also more expensive than high school when it comes to the cost of learning materials, such as textbooks.(7) In college, students must buy textbooks for each course they take.
A:句1
B:句2
C:句3
D:句4
E:句5
F:句6G、句7