1．—You forgot your purse when you went out.

　 —Good heavens, _________.

　　A．so do I　　　　B．so I did　　　　C．I did so　　　　D．I so did

解析：“so+助动词+主语”指的是下文说的另一个人的情形与上文完全相同（主语为不同的两人）；“so+主语+助动词”指的是说话人对以上陈述的肯定（主语指的是同一件事或人）；“主语+助动词+so”指的是按照上面的陈述去做了。例如：The teacher asked me to clean the blackboard, and I did so. 根据回答人的语气“Good heavens...”可得知，他真的忘记带钱包了。故选B。

答案：B

2．Mary never does any reading in the evening, ____________.

A．so does John

B．John does too

C．John doesn’t too

D．Nor does John

解析：表示当前一句话中的否定内容也同样适用于后一句时，要用“Neither/Nor + 助动词 + 主语”句型。如：Harry didn't go to church; nor did his sister. (= and his sister didn't go to church, either.) 哈利没去做礼拜，他妹妹也没去。

　　　第一个分句有否定词never，故D项nor表示“John晚上也不阅读”。

答案：D

3．Mr. White ____ at 8:30 for the meeting, but he didn’t show up.

A．should have arrived

B．should arrive

C．should have had arrived

D．should be arriving

解析：should 应该 should have done表示“过去本应该做某事而没有做”。所提供的情景“he didn’t show up”说明他本应该在8:30来开会的，但是没有来。

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