340, 35 1 and 3 10 don't stop in Wukesong. You can get off at Fengtai Station by bus 740\840\996\804, turn west, and you will see 12 Middle School at the first crossing on the left. Fengtai test center is here.

Some cars may not be called Fengtai station. Just ask the conductor to remind you to get off at Fengtai Hospital.