用 have to \ need to \ because \ since\ 写一个句子 都要用上

题目

用 have to \ need to \ because \ since\ 写一个句子 都要用上
可以是 一段话 但要有联系

答案

If you have to go back home on time,you need to take a taxi,because the bus has stopped running after 9:00pm since the new schedule carried out.