Congo is accused of ______. A: smuggling diamonds B: trading in smuggled diamonds C: trading in fake diamonds D: producing fake diamonds

were they expecting? A valuable parcel of diamonds. 

People diamonds with crystal. (imitation)

In mining industry, “black diamonds” are （ ）.

Why don’t De Beers produce more diamonds A: They are not able to produce faster. B: They want to keep price down. C: They made diamonds scarce to keep them desirabl

India is the world’s largest _________ and _____________ of diamonds while Russia is the largest ___________.

Diamonds have little _____ value and their price depends almost entirely on their scarcit

The detectives were ______ a valuable parcel of diamonds. A: expecting B: waiting C: expecting for D: expecting to

The paradox of value is illustrated by the fact that A: a pound of bread is cheaper than a pound of gold. B: teens buy designer jeans. C: if diamonds were free they would no longer be useful for engagement rings. D: gold and diamonds occupy little space.

According to practice 3 section 8.4, what were the detectives waiting for?（ ）。 A: Police. B: Sand. C: Diamonds. D: Stones.