1. Answer with the type of public transportation you commonly use, such as buses, trains, subways, etc. 2. You can also explain why you prefer this mode of transportation, considering factors like convenience, cost, or environmental impact.

1. 請回答您常使用的公共交通工具類型，例如公車、火車、地鐵等。 2. 您也可以說明為什麼偏好這種交通方式，考慮因素如便利性、成本或環境影響。