The main cause of HIV / AIDS infection in China is drug abuse, ______ is very serious in Yunnan.
#4983
A
what
B
who
C
that
D
which
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I saw a woman running towards me in the dark. Before I could recognize who she was, she had run back in the direction ________ she had come.
#4957
A
of which
B
by which
C
in which
D
from which
.Don’t argue about it. I will _________ the matter and then tell you who is right.
#4741
A
look into
B
turn into
C
get into
D
bring into
We must keep our room clean, for dirt and disease go______, you know.
#4919
A
hand in hand
B
step by step
C
from time ti time
D
one zfter another