–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
— Which is your favorite museum?— I think the best museum I like best in Zhongshan is Sun Yet-shen museum.
#42604
A
which
B
in which
C
where
D
that
