Question

Is everything that we need to do __?

Answer 1

A.done
你可以把它还原成正常陈述句，就变成Everything
that
we
need
to
do
is
_______,be
done就是完成的意思，yaoyongB，就变成has
everything……done？

Answer 2

A
这是一个定语从句，先行词是everything,
that引导的we
need
to
do是定语从句，修饰先行词everything.整个句中的everything做主语，与后面的动词之间应该是被动关系，故应该是一般现在时的被动语态。