问题描述：
1//( )of the students has an english exercise book.
a none
b both
c all
d every
2//It's normal ( ) young people ( ) material thingsA of,to wantB for,wantC of,wantD for,to want
3//I feel ( )cool to work out this problem
A it
B this
C that
D its
a none
b both
c all
d every
2//It's normal ( ) young people ( ) material thingsA of,to wantB for,wantC of,wantD for,to want
3//I feel ( )cool to work out this problem
A it
B this
C that
D its
问题解答：
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