20.—Is that Dec. 21, 2012 is the end of the world true? —Definitely not, but________must be paid to the global climate change.
30. John has recovered and _________ 3 kilos since he left hospital last month.
29. Only ____ did she realize the stress he was_____.
28. ____, he sometimes makes mistakes.
27. The transportation will improve a lot in Changzhou, with another three bridges ________ over the Grand Canal in the near future.
25. His good conduct is __________ the highest praise.