— Have you seen ____ pencil? I left it here this morning.—Is it _____black one? I think I saw it somewhere
I come to tell you Jack _____ for London next month.
--They all agree _____ George. Has the project been passed? --Who _____ George can make the final decision?
We are just _____ calling you up _____ you come in.
--How often do you go to the library?--______.
I can't understand it, will you please _____ once more?