– 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
Miss Liu, do you have any ideas about Jiuzhaigou _______ we will play together this summer holidays?
#43087
A
where
B
which
C
that
D
what
