It is ______ of a problem to be poor than to be dishonest.

Excuse me , Sir . But smoking is not allowed here. —Sorry, I didn’t see the sign. I’ll ___________________ my cigarette at once.

I’ll return the book to Mary, but I can’t find her anywhere.—She ______ the teacher’s office. You can find her there.

Look! There is a horse racing program on TV now.— Hmm …. It __exciting.

When you post a letter, don’t forget to put a stamp ________ the envelope.[ ]