乘出租车只需要100元英语怎么说

it spends you 100 RMB to take a taxi only.

前面的两句，第三人称单数。全没有加S啊，，全错了。但是语法是正确的。更正一下~

乘出租车只需要100元

It only cost you 100 yuan to take a taxi/cab

It costs only 100 yuan to take a taxi.
It is only 100 yuan by taxi.

It only cost 100yuan to take a taxi

it just takes you 100 yuan to take cab

汉译英：Only 100 yuan by taxi