ASSUNÇÃO, A.; DA COSTA LAY, A.; BELO, A. A. G. F. B. A STUDY ON MASTERING ENGLISH PASSIVE VOICE IN SIMPLE PRESENT, SIMPLE PAST AND SIMPLE FUTURE TENSES BY THE GRADE 12TH STUDENTS OF ESCOLA SECUNDARIA PUBLICA NOBEL DA PAZ, DILI TIMOR-LESTE IN ACADEMIC YEAR 2020. Academic Journal of Educational Sciences, v. 4, n. 2, p. 4-8, 16 dez. 2020.