From the first two paragraphs, we can estimate______.A.illegal immigration has a serious s
From the first two paragraphs, we can estimate______.
A.illegal immigration has a serious social problem in the U.S.
B.the Pew Hispanic Center could not give the reason for the decline of illegal immigration
C.the statistics of illegal immigration is not significant
D.the political and social disorder in the U.S. is on the wane