1 . Which kind of public t__________ do you prefer to take: a bus or a train? (根据首字母单词拼写)

2 . To lead a low-carbon life, an increasing number of people tend to travel by public t________.（根据首字母单词拼写）

3 . What kind of public t______ do you prefer, bus or train? （根据首字母单词拼写）

4 . 地震发生后，地震灾区的交通和电力中断了。(汉译英)