The boy is very fat ____ too much food. [ ]
A. So
B. so of
C. because
D. because of
答案:D
I am from China.What _____ you? [ ]
A. like
B. about
C. of
某小区偷盗案件频发,你作为社区民警,在警力不足的情况下怎么来维护好小区秩序?