To avoid _________ on how to operate the machine, you should first read theinstructions carefully.    
#93839
A
to get confused
B
getting confused
C
to get confusing
D
getting confusing
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—Would you like me        the radio a bit?—No, it’s all right. I’m used        with the radio        .
#95707
A
to turn down; to work; on
B
turning down; to working; on
C
turning down; to working; off
D
to turn down; to working; on