Television has now come to nearly every family.It has（ ）a very important part in people's life
问题描述：
Television has now come to nearly every family.It has（ ）a very important part in people's life
A,become
B,becomes
C,became
D,becoming
答
选A,这里用了现在完成时,其构成形式是：have/has+动词过去分词done
become的过去分词还是become
差不多每个家庭都有电视,它已经成为人们生活中非常重要的一部分