Witnessing the explosion(爆炸) in a chemical plant in Kunshan is the most frightening experience ______ I have ever had.
Don'tgetthatinkonyourshirt,forit______.
Thepupilshere_____allkindsofexerciseseverydayinthepastfewweeks.
He______andwasmadetorepeatit.
Thethief______whenhewasstealingawalletfromawoman.
He_____inashowerlastnightandgotwetthrough.