— Could we see each other at 9 o’clock tomorrow morning?— Sorry, let’s make it ______ time.

It is the ability to do the job ____matters not where you come from or what are. 

—I'm too busy preparing the exam. Could you do _______to help me?—Of course. I can do _______for you if you want me to.

It was hard for him to fit in a new class, in which ______ he was familiar with.

— Excuse me. I want to buy some stamps, but I can’t find a post office. — I know ______ nearby. Come on, I’ll show you.