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.
#32689
A
them; when
B
which; that
C
what;that
D
which; when
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As a child , Jack studied in a village school ,_____ is named after his grandfather.
#32082
A
which
B
where
C
what
D
that
David worked hard at his lessons ____ he gained high grades in the exams.
#31511
A
so that
B
in order to
C
though
D
because
______is known to us all is that the 2008 Olympic Games will take place in Beijing.
#30991
A
It
B
As
C
what
D
which