Earth is a rocky planet _______ liquid water, which is necessary for life, can exist.
#34792
A
as
B
which
C
where
D
when
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I promised to write to her ________I got to New York.
#31703
A
at the moment
B
the moment
C
soon
D
long before
_______ you don’t have much experience in this field, why don’t you ask Professor Wang for advice?
#31166
A
Unless
B
In case
C
Even if
D
Now that
