The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
Peter’s jacket looked just the same as Jack’s, but it cost ___________his.
You were charged________ignoring your duty. Who accused you_______such a crime?
I hope, first of all, that we shall never lose _____ heart in face of _____ failure.
--- Personally, I think it is the sales manager, rather than the salesgirls, ______ to blame.--- I can’t agree any more.
--- Why does the lake smell terrible?--- Because large quantities of water _________.