電気代

先月の電気•ガス代が２万円を超えて驚いた。去年より5千円高い。家にずっといるからか？酷暑が続いたからか？

I was surprised that the electricity and gas bill last month exceeded 20,000 yen. It is 5,000 yen higher than last year. Is it because I’m at home all the time? Is it because the heat wave continued?