The students enjoy themselves singsing and dancing.enjoy加不加S?

问题描述:

The students enjoy themselves singsing and dancing.enjoy加不加S?
The students enjoy themselves singsing and dancing.还是
The students enjoys themselves singsing and dancing.哪个对?

The students enjoy themselves singsing and dancing.对
这里主语是the students,是复数名词,谓语动词用原形.