I think I will go to Hainan on vacation.为什么填on vacation不填for vacation?原题是这样的:完成句子:我想我会去海南度假.I think I ---- ---- ---- Hainan ---- -----.答案是will go to;on vacation.不应该用for vacation吗?谢谢了.

问题描述:

I think I will go to Hainan on vacation.为什么填on vacation不填for vacation?
原题是这样的:
完成句子:我想我会去海南度假.
I think I ---- ---- ---- Hainan ---- -----.
答案是will go to;on vacation.
不应该用for vacation吗?
谢谢了.