It’s careless _____ him to make the same mistakeagain. I think it important ______ everyone to be careful in everything.

I’ve told her many times, and she still forgot about it!—I understand. It’s true that she___ be very forgetful sometimes.

Thank you very much for your nice present. — ____________.

______the police thought he wnot arrest him.

Hey, Mary, you are wanted on the phone.—________I’m coming.