Question

The second book was ____ by August 1952, but two years later, the end was still nowhere insight.

The second book was ____ by August 1952, but two years later, the end was still nowhere insight.
A. completed B. to have completed C. to complete D.to have been completed
答案是什么？怎么解释？

Answer 1

D
根据时态，拍链完成的动作发生在1952年之前，是在过去的时间点之前薯态，所以要用完成时，同时book是complete的数贺源动作承受者，用被动形式
所以是to have been completed

be to do有“计划”之意
句意为“这本书计划在1952年秋天前完成，但是...”

Answer 2

C.to complete.
be to 动词原形 表示即将逗友做，是对将来的一种判断。
原句的意思是：第二本书原定于1952年8月完稿，但直到两年消灶以后，也一直不见书的结尾部分。山桥槐

Answer 3

A
书被写完。be completed.被动词