—Do you know the person with __________ he always chatted online?—Yes, one of his QQ friends.
#42573
A
which.
B
what.
C
that.
D
whom.
推荐题目
You can visit Zhalong Nature Reserve, one of the few places on Earth _____ red-crowned cranes still live.
#42685
A
which
B
that
C
where
D
when
Now China is fighting against illegal cooking oil（地沟油）, a kind of waste oil _____can cause a lot of illness.
#42592
A
which
B
whose
C
who
D
what