licisca
#1 
1 a
2 b
3 c
4 a
5 c
6 b
7 c
8 a
9 b
10 b

#2 
1 d
2 b
3 b
4 a
5 c
6 a
7 c
8 d
9 a
10 b

# 3 
Every culture changes. The speed of change may be quick or slow. As the culture consists of many parts, a change in one part affects many others. In recent times, many cultural changes have occurred in customs, ideas and other nonmaterial parts of a nation's culture.

# 4
1 с
2 b