while；cry；thousand； correct；compare with；tradition；take photos；divide into；eat；month

61．They sent two 　　books to the school in the flood area．

62．Did you see the girl in a red skirt pass by just now？

No，madam．We 　　for each other at that moment．

63．My parents often tell me not 　　too much junk food because it's bad for my health．

64．The boy was excited because he answered the question 　　．

65．Sometimes，all of the students 　　four groups by the teachers while having a discussion．

66．After three 　　study，the scientists worked out the physics problem．

67．Chinese 　　medicine should be developed all over the world．

68．Sports build our body 　　reading builds our mind．

69． 　　his house，mine is larger and cheaper．

70．It's no use 　　over spilt milk．