The problem ________ this material can be used in our factory has been solved.
#32004
A
that
B
what
C
whether
D
why
推荐题目
_____ the English examination I would have gone to the concert last Sunday.
#80571
A
In spite of
B
But for
C
Because of
D
As for
The students of the music school study ____. 
#31664
A
music but also some other subjects
B
some other subjects as well as music
C
no subjects but music
D
neither music nor some other subjects