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

问题描述:

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

这新目标九年级UNIT3 sectionB3a上的原句是to volunteer.

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