We______our breakfast when an old man came to the door.
A、
just have had
B、
had just had
C、
just had
D、
have just had
【正确答案】
B
【答案解析】
根据句意可知,“吃饭”所表示的动作发生在“来到门前”所表示的动作之前。从句的谓语came为过去式,所以主句应用过去完成时,即“had+过去分词”的形式,表示动作发生在“过去的过去”。故选B。
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