33.The second books was ___ by August 1952,but two years later,the end was still no where in sight.
问题描述:
33.The second books was ___ by August 1952,but two years later,the end was still no where in sight.
A.to be completed B.to have completed C.completed D.to have been completed
选A,为什么?
答
was to是一种常用于强调句的短语
表示正在做