True friendship is like sound health, ________ the value is seldom known until it is lost.
#69160
A
from which
B
which
C
of which
D
whose
推荐题目
I haven’t found my watch yet; in fact, I’m not sure ____ I could have done with it.
#73150
A
where
B
whether
C
what
D
how
He turned to Russia for help in the belief ______ the country would protect him.
#66924
A
what
B
whether
C
that
D
because