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

________ does Mrs. Li wash her car?—Once a week [ ]

_______ do you go shopping with your mother?— I seldom do that.

Jim! Is this your dictionary?—No, it isn’t. Ask Sally. She is looking for_______.

This book is very _____ and I am ______ in it.