问题补充：
--Jenny did very well in maths exam.
--Oh,yeah! She is maths.
A. weak in
B. angry with
C. good at
D. afraid of
答案：
A. weak in
B. angry with
(答案→)C. good at
D. afraid of
解析：be weak in不擅长，在……方面不行；be angry with对某人发脾气；be good at擅长；be afraid of害怕。句意：珍妮在数学考试中做的不错。——哦，耶！她很擅长数学。故选C。
