题目

Last month i had an opportunity ____ at the local hospital.为什么上空填的是
Last month i had an opportunity ____ at the local hospital.
为什么上空填的是volunteering,而不用to volunteer
不要复制粘贴,百度上的我都看过了

提问时间：2020-10-18

答案

have an opportunity to do sth
have an opportunity doing sth 两个搭配都是对的,但是意思有细微区别：
have an opportunity to do sth 有机会去做谋事（表将来）
have an opportunity doing sth 有机会做了谋事（表已经发生（
由于是上个月的事情,因此选 volunteering