1.My parents often tell me ----- (eat) some fruit.It's good

1.My parents often tell me _____ (eat) some fruit.It's good for my health.
2.All my classmates decided ______（do）something for animals in danger.
3.Tony went to the library _____（return）a storybook.
4.Don't make me _____ （do）this or that.I'm too busy.
5.— where‘s Ann?Do you know?
—Well,it's hard to say.But I saw her ______ （watch）a football game just now.
求确认- -是不是只要都在所给单词前面加to就行了?各种原因?是什么?-