A．It can be used by farmers to protect large buildings.
B．It was brought to the northern USA by Asian farmers.
C．It has done more harm than good in the southern USA.
D．It was introduced into the USA to kill harmful weeds.

A．They went a long way to attend the party.
B．They didn’t think much of the food and drinks.
C．They knew none of the other guests at the party.
D．They enjoyed the party better than the other guests.