He is afraid to face the problems he’ll have the exam.
A. to pass
B. passed
C. passing
D. been passing
网友回答
A. to pass
B. passed
(答案→)C. passing
D. been passing
解析：考查非谓语动词。句意：他害怕面对他的通过考试的问题。he’ll have作定语修饰problems，后面现在分词短语做伴随状语，表示正在进行的伴随性的动作，和主语he是主谓关系，故选C。