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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John and I _____ friends for eight years. We first got to know each other at a Christmas party. But we _____ each other a couple of times before that.
#4952
A
had been; have seen
B
have been; have seen
C
had been; had seen
D
have been; had seen
I think you’ve got to the point a change is needed, otherwise you will fail.
#4979
A
when
B
that
C
where
D
which
I prefer _______ to __________ in my spare time.
#4699
A
singing… dancing
B
sing… dance
C
to sing... dance
D
to sing…dancing