Que sistema é representado na charge?​

1. answer the questions according to the model. exemplo: -how long has it been since you complained about it? (two days) -it's been two days since i complained about it. a-how long has it been since they took action? (a month) b-how long has it been since janet created this artwork? (three weeks) c-how long has it been since you took this photograph? (a year) d-how long has it been since the painter visited the art gallery? (four months) e-how long has it been since the band wrote those lyrics? (two years) f-how long has it been since you spoke out against the situation? (five days)