I like watching dolphins_____

问题描述:

I like watching dolphins_____
A.to junmp up and down
B.jump un and down
C.junmps up and down
D.jumped up and down
选择并说明为什么?

答案选B
watch sb. (do) 注视着某人做某事(指看某人做事的全过程)
类似的还有:
see sb. (do) 看着某人做某事
hear sb. (do) 听着某人做某事