Thousands of foreigners were attractedtothe Shanghai World Expo the day it opened.这个句子为什么在attracted后为to不是by
问题描述：
Thousands of foreigners were attractedtothe Shanghai World Expo the day it opened.这个句子为什么在attracted后为to不是by
答
be attracted to是被吸引到...
be attracted by是被...吸引
其实两个都可以,到时用to比较好点,强调来到了上海