–Do you know the boy ___ is standing under the tree?-Yes, he is my friend, Peter.
#43123
A
what
B
who
C
whom
D
whose
推荐题目
Will you please show me the way to the only tall building ___stands near the post office?
#43089
A
which
B
where
C
that
D
who
---I hear that Lily’s brother is a worker here.---Look! The man is working over there is her brother.
#42915
A
who
B
/
C
what
D
which