【TORI】評論
There are already seven billion people on our planet. And the 17 is that there will be around two billion more by 2050.(A) history 歷史(B) review 重新探討、批評、回顧、回憶、複習、溫習(C) forecast 預測、預報、預言(D) standard 標準目前地球上已經有7億人口，預計在2050年將再增加兩億人口。