— Alice, is this your pen? I need one to write down the name of the book. — No, it isn’t .  ________ is over there on the desk.

 When you get on a bus, it’s polite to wait for ________ turn. 

They found ­_______very hard to move the stone.

I forget to bring a pen. Would you lend me        ?

—I don’t think it very expensive to buy a family computer here.—Really? I’ll buy _____ next week.