it is normal for parrots to talk, Einstein, a small bird, is unusual in that whenever she hears a new word or sound, she repeats it over and over until she masters it.

With our knowledge ________ practice，we can make great contributions to our society.

Dad，I was the first to reach the top of the hill.—Good job, Mary. I’m_______of you.

How do you like ________color of my dress —Wonderful! I like it very much.

The wounded soldier died ______I had a chance to know his name and family .So I can never give regards to any of his family or relatives