Studies show that MP3 people have made much use of _____ music may be causing hearing loss. 
#97396
A
enjoy
B
to enjoy
C
enjoying
D
enjoyed
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She explained it again to make herself _______ by the audiences.
#96934
A
misunderstand
B
misunderstood
C
misunderstanding
D
to misunderstand
The waiter greeted me with a big smile and _____ us by the window. 
#98748
A
seating
B
seated
C
to seat
D
being seated