The workers and peasants( )the majority of the population of our country.

问题描述:

The workers and peasants( )the majority of the population of our country.
A.make into
B.make up
C.are made up of
D.make

选B
make into(把…做成)
make up(组成,构成……)
are made up of(即be made up of是 由……组成)
make 是做