If you got a 68 in English for the first semester and are 8th grade will have to go summer school?

Whether a 68 in English means summer school in 8th grade depends entirely on your school's policies. Some schools have a higher passing grade than 68, while others might have different criteria based on overall GPA or other factors. You need to check your school's grading policy or talk to your teacher or counselor to find out for sure.