【题目】The reason why her son is always thin is that he is ________ about what he eats.
A. curiousB. concerned
C. particularD. crazy
在线课程【答案】C
【解析】
考查形容词辨析。be curious about对……感到好奇；be concerned about对……关心；be particular about 对……挑剔；be crazy about对……疯狂，痴迷。句意：她儿子瘦弱的原因是她儿子挑食。故C选项正确。