It was in the lab_________was taken charge of by Johnson_________they did the experiment.
#85047
A
where; which
B
which; that
C
which; which
D
that; which
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It was not until dark he found he thought was the correct way to solve the problem.
#84943
A
that；what
B
that；that
C
when；what
D
when；that
—Who is making so much noise in the garden?—___________ the children.
#85044
A
There are
B
They are
C
That is
D
It is
It is only with the help of scientific research _____ bring PM1 air pollution under control.
#84662
A
that we will
B
we will
C
that we do
D
do we
—I can’t find Xiao Ping, where did you see him this morning?—It was in the library______ he studied．
#85440
A
that
B
where
C
which
D
the one