4.Unless we can draw out lessons for our own times, history becomes ______ a series of dry data points with no broader relevance.

38.

2. _________ it is possible that genes have some influence, I find it hard to believe that they would count for more than all the thousands of experiences each person has.

37.

30.

43.How many students can get A in college nowadays?

41. Professor began to give high grades in the early 1970s because _____

28.

27.

9.Mary is looking for some ________ to go with her black and white evening gown for the party.

1. Now may farmers have reverted to traditional farming methods, ________ their ancestors’ way to handle specific pest or disease problems.

49. What step is essential to the traditional production of flu vaccine?