With a lot of difficult problems           ,he feels like a cat on  hot bricks.

to settle

being settled

settling

settled

考查非谓语动词。句意： 因为有一大堆难题要解决，他感觉像像热锅上的蚂蚁。本句with +名词+to do sth,动词不定式表示的动作尚未发生或当时看来尚未发生。本句表示“因为有一大堆难题要解决”。故选A项。

Mary never does any reading in the evening, ______.

so does John 

John does too

John does not to

neither does John

主句用never，后面的倒装句相应的用nor或者neither，用完全倒装形式表示后者与前者情况相似。

---I think you are different now.

---Of course，times have changed and________.

so have I

so I have

neither have I

neither I have

肯定的陈述句后，跟so+主语+谓语，表示强调：确实…，其主语与前陈述句的主语相同；肯定的陈述句后，跟so+谓语+主语，表示…也…，其主语与前陈述句的主语不同．根据times have changed，可知对另一个"我"说时代也已经变了，用倒装句，本句是现在完成时，含有助动词have，主语为I，在这里还用助动词have完成，故选A．

---What language is that guy speaking？I can hardly catch a single word!

---_________He’s from India,so I guess it is Hindi.

Neither I can

Neither can I

So I can

So can I

so can I 表示 我也是这样，前一个分句是肯定句的时候用，前后主语不指同一个人； neither can I 我也不…，前一个分句是否定句的时候用，so I can主要用于加强语气，其意为"的确如此、确实如此"前后句的主语指的是同一个人或物．根据"I can hardly catch a single word!"可知回答为否定语气。