—_____ the population of the U.S.A. in 2005?—It _____ about 296 million.A.What is; isB. What was; wasC. How many is; was
Look!The boys________football on the playground.A.playedB.playC.are playing
—What does your mother do?—She is________.
My parents are________TV now.
My mother is________cakes.She often________cakes for us.
—Could you help me do the dishes?—Sorry,my sister________for me outside now.