高中英语时态问题,达人进!The new department store _______ on 2nd January , but the explosion prevented this A. was to have openedB. had to be openedC. was about to open D. had been opened详解,谢
问题描述：
高中英语时态问题,达人进!
The new department store _______ on 2nd January , but the explosion prevented this
A. was to have opened
B. had to be opened
C. was about to open
D. had been opened
详解,谢
答
A
to be done 计划做.
因为后文的prevented 用过去时
意思是商店原计划1月2日开张,但是爆炸事件阻止了此事的发生
不肯定.