Teenagers ________ their sense of hearing because they always wear earphones.
#99067
A
damage
B
are damaging
C
has damaged
D
will damage
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Food will include buffalo that________________ over an open fire . 
#103303
A
roasts
B
is roasting
C
will be roasted
D
had been roasted
It is the first time I ______ this kind of music.
#100782
A
heard
B
am hearing
C
have heard
D
had heard
Profits in his company went up by 25% last year,and _____ so far this year though the  financial situation is bad.
#104019
A
haven’t decreased
B
didn’t decrease
C
haven’t been decreased
D
weren’t decreased