选用方框内所给词的适当形式填空。 you cross act child laugh 1. The boy wants to be an ________ just like Jackie Chan. 2. Tony, believe ________ and you are sure to succeed. 3. We couldn't help ________ after we watched Zhao Benshan's funny performance. 4. You are supposed to look around when you walk ________ the street. 5. Chocolate is usually the ________ favorite food.