I wrote a paragraph about my daily routine which someone corrected on Lang8. I have a question about a couple of the corrections. The person suggested I use 会 and 要 in the sentences below. I'm not sure why, as I'm talking about what I usually do, not the future or ability. Can anybody enlighten me? Thanks. 有时，一个同事会让我搭便车。我一般会在学校待到五点。我要备课，批改学生作业. Sometimes a colleague gives me a lift. I usually stay at school until 5. I prepare lessons and correct homework.