Escreva a preposição correta:(in,on,at): ME AJUDEM a) I go to school ___ 7 in the morning. b )I study English ___ Thursdays. c) My birthday is ___ December. d) My sister was born ___ 2001. e) The concert starts ___ 8:30. f) We have a party ___ Carnival. g) The party is ___ August, 20 th. h) My class starts ___ one hour. i) She goes to the gym ___ Saturdays. j) My mother is here ___Easter.