Question

英语问题为何不选C1、She will tell us why she feels so strongly that e

Answer 1

i have some homework to do.

each of us has a role to play.

这两句表示 主动进行的动作,自己在做,

试比较：

i have some homework to be done

each of us has a role to be played

这两句是省略了by sb else 的.

所以

i have some homework to be done（by someone eles）

作业不是 自己在做了,而是让别人 在帮你做.

同理可得到 C是错的 原因.