---It’s nice day, isn’t it?---Yes, what fine weather!
—Don’t play with the knife, ______ you’ll cut your hand.—Sorry, I _____.
This is __ song I’ve told you about . Isn’t it __ beautiful one?
A lot of e-mail English words might_________ us, because we seldom use it in our daily life.
What a big elephant! Do you know how many pounds_________?
This program _______in 1980, and so far __________thousands of oversees Chinese students to China to look for their roots