---I’m very sorry to have ___ you with so many questions. ---It doesn’t matter.
—Excuse me , Sir. Where is the gym? —Take the lift to the tenth floor, and you ________ find it.
By using ears one can tell the direction _____ a sound comes.
Don’t forget to take your cellphone with you _____ you can call for help if necessary.
What especially impressed us was the way _____ our teacher studied foreign language.
As you know, this is the day_____ the quake happened thirty years ago.