Lawrence Craven, a doctor from the USA, is the author of several published reports, one of ________ introduced the idea in 1953 _________ aspirin could reduce the risk of heart attacks.
#77613
A
them; when
B
which; that
C
what; that
D
which; when
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Great changes have taken place in the city ______.
#76040
A
in that she grew up
B
she grew up
C
in which she grew up
D
which she grew up
Water, _____ we cannot live, exists in the form of liquid, gas or solid. 
#76931
A
from which
B
on which
C
by which
D
without which