A:⑤⑥⑧⑨⑩
B:③⑤⑦⑨⑩
C:②④⑧⑨⑩
D:①④⑤⑧⑩
—You look sad, Betty. What's the matter with you?
— ______
读诗《静夜思》,解释诗句的意思。