-Would you get me a bar of chocolate from the kitchen,dear?-          one?                                        

—Which tie would you prefer，the black tie or the red one，Madam?—I’ll take ________ to have a change sometimes.

All 　　is needed is a supply of oil.

----How many birds can you see in the tree?----_______. All the birds have flown away.

--- Is John in the office? ---I didn’t see ______ there．