OG13 SC13(OG12 SC11)主动和被动到底可不可以平行？

13. There are several ways to build solid walls using just mud or clay, but the most extensively used method has been the forming of bricks out of mud or clay, and, after some preliminary air drying or sun drying, they are laid in the wall in mud mortar.

(A) the forming of bricks out of mud or clay, and, after some preliminary air drying or sun drying, they are laid

(B) forming the mud or clay into bricks, and, after some preliminary air drying or sun drying, to lay  them

(C) having bricks formed from mud or clay, and, after some preliminary air drying or sun drying, they were laid
(D) to form the mud or clay into bricks, and, after some preliminary air drying or sun drying, to lay them
(E) that bricks were formed from mud or clay, which,  after some preliminary air drying or sun drying, were laid

正确答案D。
做对了，但是其实我纠结的地方比较奇怪=-=
A选项OG说The active gerund phrase the forming of bricks does not fit with the passive verb phrase that follows (they are laid).

我知道这两者的形式明显不平行，但是我在纠结它说的active和passive，所以主动和被动到底可不可以平行？

我知道如果主语是同一个那是可以平行的啦：I joined the committee in 2004 and was elected chairman later.

但如果不是呢？如果一个是人一个是物呢？比如这道题A的意思上我觉得就是“人form bricks”和“bricks are laid”的平行。

所以谁叫OG说的那么深奥啦55555 钻牛角尖了 期待解惑~~~~~~~~~~~~~~~~~

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