It is already 10 o’clock. I wonder how it ______ that she was two hours later on such a short trip.
Mary,______ here--everybody else,stay where you are.
The fact that smoking is harmful to health is__________ most smokers admit.
_______ the production up by 60%,the company has had another excellent year.
He claimed _______ in the supermarket when he was doing shopping yesterday.
What kinds of gifts and things do people buy during______major festivals like _______Christmas and_______Spring Festival?