– Why does Mary look so sad? – Maybe the things _______ she saw made her think of her grandmother.
#42826
A
that
B
what
C
who
D
Whom
推荐题目
The English-Chinese dictionary ____my father bought for me many years ago is so useful.
#42665
A
whose
B
who
C
that
D
what
The farmer was very thankful to the doctor _________ saved his son．
#42762
A
whom
B
which
C
who
D
whose