单选题 --It is said that Kate failed in the finals.
-- ______ she is sad these days.

【正确答案】 D
【答案解析】[解析] “no wonder that”=“It is no wonder(that)”，意思是“难怪，一点都不奇怪”。本句句意为：——听说凯特考试不及格。——难怪她这几天看起来很不高兴。故本题答案为D。