选用方框内所给词的适当形式填空。

you   cross   act   child   laugh

小题1:The boy wants to be an ________ just like Jackie Chan.
小题2:Tony, believe ________ and you are sure to succeed.
小题3:We couldn’t help ________ after we watched Zhao Benshan’s funny performance.
小题4: You are supposed to look around when you walk ________ the street.
小题5:Chocolate is usually the ________ favorite food.