The students are surprised ______ that fish sleep with eyes open

问题描述:

The students are surprised ______ that fish sleep with eyes open
A.knew B.know C.to know D.knowing

三、1.It is interesting _________( know ) something about animals.2.__________(not open) the door.It is cold outside.3.She can work out the difficult question _________(easy)4.Please keep ___________(...