—It ____. It cost her an arm and a leg.
—Sorry. I'm afraid you____. The sign over there says，"please do not feed the birds. "
—I guess Tom ____ not be ready. He is looking for his backpack.
—It____be him.He went to the meeting in Beijing yesterday.
—Certainly, go along the road and turn left.
—It ____ be Jeff's， Look! His name is on Page One.
— No, you needn' t. You may have dinner first.
—It ____ be hers. She has just gone for a meeting in her car.
—Sure. Go ahead, please.
—It ____ be Jerry' s. It' s much too small for him.
