B, “They saw the concert in the park last weekend.”
A concert in the park can be considered by some a “full” noun, or have a be a modifier, but both are correct.
Is it supposed to be true or false?
Answer:
The black market often sets a price for foreign exchange that is several times the official one. Examples of goods traded in the black market are weapons, illegal drugs, exotic and protected species of animals, and human organs needed for transplant surgeries.
Black markets typically arise when the government attempts to control prices or imposes an excessively high tax burden on transactions. For example, when a government imposes price controls on fuel, individuals willing to pay more than the fixed rate will form the demand side of a black market.
B.
until - until he comes for example ( time before someone comes or something is happened)
Meanwhile - during a period or an action where another thing is happening (at that time)
Later - after some period - two months later ( after passing of some amount of time
