Beijing was attacked by such a terrible sandstorm ______few citizens had ever experienced before.
—DoyouknowanyoneinParis? —No.I'llmakefriendsonce______.
Don'tgetthatinkonyourshirt,forit______.
Thepupilshere_____allkindsofexerciseseverydayinthepastfewweeks.
He______andwasmadetorepeatit.
Thethief______whenhewasstealingawalletfromawoman.