David I lost your book at school I suppose I pay for it. — Oh.______ . It was just an old book anyway.

－－What did you do with your car？－－I lost my key, so I had to _________it in the p

Your usual teacher has lost his voice and_____I am taking his place today.A．moreoverB．neve

Tom, your book was due yesterday and I would rather you______the book then.A．would returnB

— Hello, I’m David Potter.— Hello, I’m Kelly Smith. Just （).A、call my KellyB、call me at

______ your answers ______ those at the back of the book to see if they are right.A．Compar

This book has been in the works so long that I have lost ______ of most of the sources fou