-- ______ you______ your homework yet? --Yes, I _____ it just now.
—It is quite an interesting book for us to read. Do you think so? —_______.I have read it many times.
—There is not much difference between the two watches. I don’t know ______. Do you have any suggestions? —I don’t know , _____.
By the time I was nine ,I ______hundreds of English words.
—Wang Wei, what are you doing ? —I’m reading ______.
I know the young man in green jacket ____brother is my good friend.