look everyone in the group --- talking actively about their idealsa\ isb\ arec\ hasd\ have请说明理由好吗

look everyone in the group --- talking actively about their idealsa\ isb\ arec\ hasd\ have请说明理由好吗
look everyone in the group --- talking actively about their ideals
a\ is
b\ are
c\ has
d\ have
请说明理由好吗

look everyone in the group --- talking actively about their idealsa\ isb\ arec\ hasd\ have请说明理由好吗
选A,首先have或HaS后应该用动词的过去分词,而不能用现在分词,所以D和C排除.该句主语应看作一个整体,所以谓语应用单数,所以是is,选A.

A be doing 是现在进行时。everyone看做单数，用is。