Mary was dancing while Mike ________ the piano.
—There _______ a factory here, but now it has changed into a big supermarket.— You are so lucky to live here.
—The sick monkey to the animal centre tomorrow morning. — I hope it will be better soon.
—We should try our best to realize our ______.—Yes, I think so, wish you good luck!
—Oh, Mrs. Liu, your necklace looks nice. Is it new? — No, I ____ it for two years.
—What a clean and bright classroom, isn’t it?—Yes, it’s always clean and bright because it every day.