There is a mountain_____the top is always covered with snow.
#73714
A
whos
B
of which
C
its
D
that
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As long as the laws of nature ______, there will be tornadoes.
#68427
A
exist
B
are existing
C
will exist
D
existed
Our teacher is always busy preparing lessons until 11 o’clock at night, we students have gone to sleep.
#72594
A
that time
B
by which time
C
by that time
D
which time