选用方框内所给词的适当形式填空。

you   cross   act   child   laugh

The boy wants to be an ________ just like Jackie Chan.
Tony, believe ________ and you are sure to succeed.
We couldn’t help ________ after we watched Zhao Benshan’s funny performance.
You are supposed to look around when you walk ________ the street.
Chocolate is usually the ________ favorite food.