Punctuation: Which one belongs?

A game in which students can learn proper punctuation with exclamation points, periods, and question marks. Kids will have fun reading silly sentences and trying to find out how to end each sentence.

An exclamation point shows excitement.
(I think I just swallowed a fly!)

A question mark ends a question.
( Did you just eat a frog?)

A period ends a sentence like a command or it just tells you something.
(I have to go to the bathroom.)

Choose the punctuation mark that best completes each sentence.