请帮忙解释一下

danlon77

The letters of Abigail Adams to her husband and future President, _________ John, during the American Revolution, conveyed a vivid picture of the times.

(A) were written

(B) which written

(C) written

(D) written when

答案为C。不知是什么意思，请帮忙解释一下，谢谢！

水滴石穿

偶认为最准确的是WRITTEN 后还要有个介词如BY.但就题目中的选项只能是C.完整的是WHICH WERE WRITTEN.如果省略要将WHICH WERE 一起省去.

danlon77

好像没有by！

violetyang83

楼主实在不爽就用排除法吧.

我觉得TOEFL前15道题最简单的办法就是数动词和关系代词关系副词.呵呵.