--As we know,China is still a _________ country while the U.S.A. is a _________country.A.developing;developed B.developed;developing C.developed;developing
—Tina, I have cleaned most of the windows. —That's very kind you. It's difficult me to do it all by myself.
—Excuse me, could you please tell me the way to the ? I have had too much water. —Go along the street and you will find one.
—Look! There a number of apples on those trees. —Wow! I think the number of the apples over 100.
—Whose dog is this? —It's . Both of like it very much.
—Lily, do you have any brothers? —Yes, I have one elder brother. He is college student. He likes playing basketball.