This activity can not only boradens our horizon but also foster our noble spirits .I guarantee that you will enjoy yourself.请问foster是否要加s

问题描述:

This activity can not only boradens our horizon but also foster our noble spirits .
I guarantee that you will enjoy yourself.请问foster是否要加s

要加,因为前面的boraden作为动词(开阔)加了s的,所以后面的foster(培养)作为动词,人称、时态要与前面动词的人称、时态一致,所以要加S

不用,foster前面省略了情态动词can
另外boradens打错兼用错,应该是broaden,情态动词can后面的动词不用单复数变化