---What made him so angry?
--- _______.A.Because his son escaped from schoolB.His son’s escaping from schoolC.His son escaped from schoolD.What his son escaped from school
网友回答
B解析四个选项分别表示因为他的儿子逃学了,他儿子的逃学问题、他的儿子逃学了，选项D不和语法。其中选项B动词的现在分词，指的是他的儿子不止一次逃学，最符合题意，故选B。