—Excuse ______. Is this ______ book?—Yes, thanks.

There are lots of restaurants in our town. And most of _____ are clean and cheap.

----Who’s ____________favourite singer? -----Jay Chou.

---Which would you like to eat, bread or sandwiches?  ---___________. Please give me some dumplings.

Sam is a very good man. He always tries __________ best to help others.