You can go there by bus.You can go there by taxi.合并成一句

题目

You can go there by bus.You can go there by taxi.合并成一句
合并后是 You can go there by bus or by taxi.还是 You can go there by bus or taxi.为什么 书上是第一种、两个by的
老师还说了一个句子 You can play with Nancy.You can play with Sandy.合并后是You can play with Nancy or Sandy.我怎么觉得是You can play with Nancy or with Sandy

答案

or 属于连词,前后成分要平行,前面用by bus, 后面就还用by sth
另外如果你说by bus or taxi意思就不是两者都可以了,就是你不清楚到底选哪个了.

前面的那句话by taxi 和 by bus 都是句子的方式状语,所以并列在一起
后面那句话nancy 和 sandy 都是with 的宾语,所以两个可以直接用or进行并列.