It has been proved______eating vegetables in childhood helps to protect you against serious illnesses in later life.
#79818
A
if
B
because
C
when
D
that
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It may be 5 or 10 years __________ it is possible for people to find a space station on the moon.
#30830
A
since
B
before
C
after
D
when
The most favorite room is the tidy study with a fireplace, _____we can watch TV and enjoy the nice scenery outside.
#80300
A
where
B
when
C
that
D
which
What the doctors really doubt is my lather will reeover from me serious disease soon.
#30620
A
whether
B
when
C
why
D
how