______ the prices of color TV sets down by 50%, the company had a very hard time.
Nothavingfinishedhishomework,______towatchTV.
—DoyouknowanyoneinParis? —No.I'llmakefriendsonce______.
Don'tgetthatinkonyourshirt,forit______.
Thepupilshere_____allkindsofexerciseseverydayinthepastfewweeks.
He______andwasmadetorepeatit.