—Excuse me, sir. Here’s a package for Lin Tao. Which room does he live in?—————.
---Whose(谁的) is the ruler? ---It’s not_______. It’s ________.
Here ______two books and a pen on the desk.
---_______my beautiful pencils? ---They are on the table.
Please call Alan _______495-3569.
---Is that a ruler? ---Yes, __________.