问题补充：
---Is anything ?
---I can’t decide which dress I should wear at my friend’s wedding party.
---I don’t think it .
A. the matter; the matter
B. matter; matters
C. the matter; matters
D. matter; the matter
答案：
A. the matter; the matter
B. matter; matters
(答案→)C. the matter; matters
D. matter; the matter
解析：当matter作表语时前应有冠词；“ don’t think it matters” 意为“我认为那不重要”。
