Hello, Sandy. This is Jack. What are you doing?—I’m watching a match. It started at 7:00 p.m. and _____ on for another an hour.

It was a cold winter night, and there wasn’t anyone __________the boy could turn for help in the street.

The new stadium being built for the next Asian Games will be ______ the present one.

______is your birthday gift, Linda? — It’s a circle.

Would you prefer to attend a private tutor?—I’d rather _____ for a class than _____ a tutor.