Section BDirections: There are 5 incomplete statements here. You should fill in each blank with the proper form of the word given in the brackets.31. He is unable to answer the questions about the new text. He should (preview) _____ it yesterday.32. If either of you (take) _____ a vacation now, we will not be able to finish the work.33. He is an honest official and never accepted any gifts from people who (seek) _____ his help.34. The opinions (express) _____ in the editorial section of that newspaper are usually conservative.35. It must (be) _____ around nine o'clock when I drove back home because it was already dark.