单选题 I didn't ask because I was afraid of looking stupid.
【正确答案】 A
【答案解析】[解析] 考点;考察派生词。派生词的考察是词汇题部分的常见考点。foolish“愚蠢的”:fool +ish;boring“令人厌烦的”=bor(e)+ing;childish“孩子气的”:child+ish;exciting“令人兴奋的”=excit(e) +ing。stupid“愚蠢的”,所以答案是A。该句的含义是“因为我担心自己会被认为很愚蠢,所以没问。”