根据括号里的提示完成句子The teacher says that Tom always ____hard.(work)

根据括号里的提示完成句子
The teacher says that Tom always ____hard.(work)
I am sure that my sister have ____the cheese.(eat)
The mechanics say that thay are _____on a plane.(work)
My little brother believes that the earth _____round.(be)
I think he didn't ____the teacher's words.(know)
Jim says that he has _____Tony's book.(read)