Linda was______ the experiment a month ago, but she changed her mind at the last

游客2023-11-04  18

问题 Linda was______ the experiment a month ago, but she changed her mind at the last minute.

选项 A、to start
B、to have started
C、to be starting
D、to have been starting

答案 B

解析 不定式作主语补足语。英语中通常对“it is believed that…”做如下转换:It isbelieved that he is…=He is believed to be…。故B为答案。
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