According to the statistics, listening to loud music at rock concerts ______ hearing loss in some teenagers in the past 2 decades.
#85876
A
have caused
B
caused
C
had caused
D
has caused
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“If anybody ________,please put down ________ name,”said the teacher to the monitor.
#86328
A
wants to buy the book;his
B
want to buy the book; their
C
will buy the book; one’s
D
wants to have the book bought; her
Nothing but grass and trees ____ the hill. 
#86172
A
covers 
B
cover 
C
covering 
D
iscovering