【2012 南宁】A woman with two children ______ along the street at the moment.
—Hey, Jack. Waste paper ________ here.—Sorry, I won’t do that again.
Our team tried our best, ________ we failed the match at last.
Mr. Li will go to Guangzhou by air. His workmates are ______ at the airport.
The computer in 1946 in America.
—Why are you so happy today? —Because I to London with my parents tomorrow.