The lawyer suggested that the problem worth paying attention_____ at the next meeting.
______ the ancient Egyptians built the pyramids puzzled people for centuries.
The boy as well as the two dogs _____ when the earthquake rocked the city.
—Sorry, the tickets have already been sold out.—Really? Maybe I _______ a little earlier.
From his voice on the phone, I know everything is going under way.
The conference was ________ fixed for the 10th, August, but later the unexpected landslide (泥石流) in Zhouqu in Gansu province, made us put it off.