–With the final examination approaching, I’m getting anxious. As a consequence, I have no appetite for anything and even can’t fall asleep.-- Don’t worry. Things will pick up if you ____ yourself.

-You were not in when I came over to your house. -Oh, I ____________ for a friend from England at the airport. 

Although he          in America for a long time, he’s never regretted his making his mind to return to his own country.

---It was dangerous to throw that bottle out of the window. You could have hurt someone.---I’m so sorry! I _______ .

—What have you been busy with these days? —I ______ that the speech contest has been brought forward, so I ______ for it.