The driver was at____ loss when ____word came that he was forbidden to drive for speeding.
Is ________ man’s ability to reason that sets him apart from other animals?
--- Can I help you ? --- I’d like to buy a present for my best friend, _______at proper price but of great use.
I found ______ possible to answer all the questions within the given time.
——Have you any money on you? I need some badly. ——Sorry, but ______ at all .
Some tourists think that the beauty of mountains is greater than ______ of deserts.