—_____ the population of the U.S.A. in 2005? —It _____ about 296 million. A.What is; is B.What was; was C.How many is; was D.How many was; is
—How many computers are there in the room? —__________. Some workers moved them to another place just now.
He thought he ________ a teacher two years later.
It’s too cold in the room. Please keep the door _______.
Unluckily, my grandma fell downstairs and her legs were badly _______.
I’ll do it better if my mother _______ me to try one more time.