заполните пропуски соответствующим местоимением.
... am a 16-year-old high school student.

(1) I  (2) you (3) your (4) mine  (5) He (6) his (7) It (8) my  (9) It (10) yours (11) my (12) they (13) he (14) his (15) us (16) our (17) himself (18) me