----What’s wrong with you, Eric? You look tired.----I________ to prepare for the final exam last night.
Jenny’s uncle is a scientist. She is proud ________ him.
— Hi, Mike! How’s it going?— ________
Sun Wukong is ________ unusual monkey.
—Could you please sweep the floor? I’m going to cook dinner.— ________. I’ll do it at once, Mom.
—Excuse me, do you know________ ?—Sure, there is a bookstore down the street near here.