(The above) is the most important aspect (which) apes (can be told) from (more primitive) social groupings.

单项选择题The three most important issues (of concern to) citizens today are (prison reform), (abusing children), and toxic (waste).

单项选择题People thought: Hey, eat a carp and you will be taking in (what) it is that gives you these (fish) their long (life-span). Of course, it (hasn't done) a lot of good for these carp.