问题补充:
A huge amount of environmental damage has been by the destruction of the rainforests.
A. brought up
B. brought about
C. brought down
D. brought out
答案:
A. brought up
(答案→)B. brought about
C. brought down
D. brought out
解析:A.提出,抚养 B.引起 C.降低,打倒 D.出版。根据句意:由于雨林的毁坏,大量的环境问题发生了。故选B