Did the wrong homework again. Think over what you don't understand wrong. If it can't be solved, ask teachers and classmates more, often review and strengthen the mistakes that are easy to make, do appropriate repetitive exercises, and digest what teachers ask their classmates into their own knowledge. One-on-one tutoring at Taiyuan University is quite good. I found their phone number for you. You can call for advice. One-on-one tutoring for primary and secondary schools in Taiyuan Xueda Education Campus free consultation telephone Taiyuan Xueda Education Store Learning Center -400 800 2446 to 2483 Taiyuan Xueda Education Sanqiang Road Learning Center -400 800 2446 to 2476 Taiyuan Xueda Education Changfeng Learning Center -400 800 2446 to 2475 Taiyuan Xueda Education Shanda High School Attached Learning Center -400 800 2446 to 2482 Taiyuan University Education Yu. Secondary Learning Center -400 University Education Youth Road Learning Center -400 800 2446 ext. 2478 Taiyuan University Education Taoyuan South Road Learning Center -400 800 2446 ext. 2480 Taiyuan University Education One-minute Learning Center -400 800 2446 ext. 2477 Other campuses in Taiyuan, please contact the toll-free number -400 800 2446 ext. 2480.