She knocked at the door one by one to make sure that each person ___ about the fire.

She knocked at the door one by one to make sure that each person ___ about the fire.

题目
She knocked at the door one by one to make sure that each person ___ about the fire.
A.to be telling B.was told C.told D.tell
答案
选B 这道题要根据句意选:她挨家挨户的敲门,保证每个人都 被通知到 发生火灾了
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