问题补充：
now people cut down many trees,a lot of animals are losing their homes.
A. Because ;so
B. So ; because
C. Because ;/
D. /; because
答案：
A. Because ;so
B. So ; because
(答案→)C. Because ;/
D. /; because
解析：句意：如今因为人们砍伐了许多的树木，所以，许多的动物都丧失了它们的家园。英语句中因为，所以不能够同时出现，故选C
