Great changes _______over the years.
— I don’t have a partner to practice English________. — Why not ________ an English language club?
—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 ______.