Three-fourths of the surface of the earth___sea.
#86267
A
is
B
are
C
were
D
has been
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All the scientific evidence that increasing use of chemicals in farming damaging our health.
#85907
A
show; are
B
shows; are
C
show; is
D
shows; is
Professor Smith, along with his assistants, _____on the Project day and night to meet the deadline.
#85684
A
work
B
working
C
is working
D
are working
