A Wechat (微信) is an invention __________ can help people talk to friends, share photo, ideas and feelings freely.
#42631
A
which
B
who
C
whose
D
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–Do you know the man is running along the street?–Yes.He is our math teacher.
#42734
A
who
B
whom
C
which
D
whose
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
--- Is the woman ________ walked past just now your teacher?--- Yes. She teaches ________English.
#42905
A
that, our
B
who, us
C
who, our
D
which, us