Catering to student's reading needs

I am a future English teacher in my last year of school and am preparing to being my student teaching in Uganda Africa next fall. I was just wondering if I could get some feedback from the teachers out there on reading in the classroom. As we know, students are learning at different levels at any given time. How do you cater to the needs of advanced readers, struggling readers, and ESL readers who are in the same class? Having such a wide range of learning levels in a single classroom runs the risk of losing whichever group of students is not being considered. Any tips???