31.One more month, _____ these baby birds will fly out of their nest.
  A. or           B. and          C. but          D. otherwise
32.We don’t intend to sign any documents without         our lawyer.
  A.demanding        B.discussing          C.consulting     D.asking
33.The temperature will fall sharply the day after tomorrow,when a snowstorm        
  to strike our area.
  A.expects          B.is expected         C.has expected    D.will be expected
34.Jude,seated in a chair and lost in thought,gave me a sudden look,as if         ,“Are you kidding?”
  A.to say           B.to have said         C.said           D.to be saying
35.Since 1995, ______ people call the Year of the Internet, the world has turned flat thanks to the net work.
  A. which           B. when          C. in which         D. by which time