—I have worked hard at English, but it seems that I haven’t made any progress.—Keep on _____ at it, and you will be successful.
—________ woman is Daniel’s mother? —The one in the red coat.
My brother gets up 6:00 the morning every day.
Bill plays basketball forhour every day.
We were swimming in the lake _______ suddenly the storm started.
The price of petrol(汽油) is not _______ that of last year, so some more people are planning to buy cars.