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This amber necklace is a real _______ at such a low price.

The money he has contributed in the past years to ______ the disabled is now considered to be of great value.

______ to computer games, he had no time to go over his lessons. As a result, he failed in all subjects.

---- Did he give you advice on your work yesterday?
---- Yes. But his advice, as a matter of fact, ______ my difficulty.

Mountain climbing ______ be really dangerous at times even though it is challenging and exciting in general.

      at failing in the maths exam, John wouldn't like to talk about it to his parents.

Jumping out of ___ airplane at a height of 5000 kilometers is ___ unforgettable experience.           

The loss has not yet been _______ accurately, but it is believed to be well beyond a hundred million dollars.

-- Hey! Do you know Bulls’ Derrick Rose becomes the youngest NBA MVP?
-- Er… but what does MVP________?

The managing director took the ________ for the accident, although it wasn't really his fault.