题目内容：

Kitty felt __ because she didn't pass the Maths exam
A blue
B yellow
C green
D black

优质解答

Kitty felt （A.blue） because she didn't pass the Maths exam.
因为数学考试没及格,Kitty心情很不好.
feel blue,感到悲伤、忧郁.blue在这里并不指颜色,而是情绪.