单选题：We （　　）our breakfast when an old man came to the door.

题目内容：

We （　　）our breakfast when an old man came to the door. A．just have had
B．have just had
C．just had
D．had just had

参考答案：

答案解析：

The （　　） is nearly dead , so I can not start the car again.

The （　　） is nearly dead , so I can not start the car again.A．bean B．beam C．bake

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（　　）student with a little common sense should be able to answer the question.A．E

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Smoking may induce lung cancer．A．Right B．Wrong C．Not mentioned

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