3．-How was your holiday?

　　-It couldn't have been ________. I just stayed in the hotel because it was raining most of the time.

　　A．boring B．more boring

　　C．most boring D．less boring

　　解析：选B　"couldn't have done＋形容词的比较级"表示"没有比这更......"；再根据语境可知，此处应该是指"没有比这更无聊的了"，故选B。

　　4．It was several minutes ______ we realized what was happening - our dog was trapped in a newly­dug tunnel.

　　A．since B．before

　　C．until D．while

　　解析：选B　句意：过了好几分钟我们才意识到发生了什么事--我们的狗被困在一个新挖的隧道内。"It was＋时间段＋before＋从句"是固定句型，意为"过了多长时间才......"，从句用一般过去时。

　　5．Suddenly, a tall man driving a golden carriage________ the girl and took her away，________ into the woods.

　　A．seizing; disappeared B．seized; disappeared

　　C．seizing; disappearing D．seized; disappearing

　　解析：选D　句意：突然，一个驾着金黄色马车的高个男子抓住那个女孩把她带走了，消失在树林中。第一个空是谓语动词与took并列，故用seized；第二个空应用现在分词作伴随状语，因为disappear与其逻辑主语是主动关系。

　　6．-You look worn out.

　　-I certainly do. We have been working overtime since Monday to meet the ________.

　　A．deadline B．schedule

　　C．interval D．opportunity

　　解析：选A　句意："你看上去很疲惫。""的确。我们从星期一就一直在加班，赶在最后期限之前完成工作。"meet the deadline"赶上最后期限，按期完成"，符合句意。schedule"日程安排"；interval "间隔"；opportunity "机会"。

　　7．The shy girl ________ dance before so many strangers, ________ she?

A．daren't; does B．daren't; dare