The expert offered us another piece of advice,_____of great help to our program.
#73723
A
I think it is
B
I think which is
C
which I think it is
D
which I think is
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We cannot figure out ____quite a number of insects, birds, and animals are dying out.
#74315
A
that
B
as
C
why
D
when
By nine o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, _______appeared a rare rainbow soon.
#74487
A
of which
B
on which
C
from which
D
above which
We went through a period______communications were very difficult in the rural areas.
#74469
A
wtach
B
whose
C
in which
D
with which