专四

单选题Linda was ___ the experiment a month ago, but she changed her mind at the last minute.

A.to start 
B.to have started
C.to be starting 
D.to have been starting

参考答案:B进入在线模考
【译文】一个月前,琳达本来要开始做实验的,但是她在最后一刻改变了主意。
动词不定式的用法。“was/were to+动词原形”表示过去将来时间的安排,如果这个安排后来被取消了,没有实现,则用“was/were to+ have done”。故选8。