When Alice came to, she did not know how long she _____ there. (2011新课标卷29)
33. Great honors will be given to ______ have successfully rescued the victims of the earthquake.
32. The traffic problems we were looking forward to seeing ______ should have attracted the government’s attention.
31. The decision ______ Internet addiction(成瘾)as a mental disorder has caused much debate.
30. As we watched the panda, we stood still, ______ to one another.
29. Contrast may make something appear more beautiful than it is when ______ alone.