You can’t turn right when you see the sign _______.
www.yyxzylearnenglish.net is a website______ is helpful to English learners.
The new computers ______ to the village school. Do you know?—Yes. I heard of it.
—What about the English test yesterday?—I never did so______. I’m sure I can do very well.
— Did you watch the opening of Winter Olympic games?— No, I didn’t. I ______ on the Internet.
The air in the countryside is , so many people from the city drive cars there on weekends.