第9题:[单选题]I am very surprised to _________the odd skull in this formidable locker. A.have come across B.coming across C.come across D.came across 参考答案:C 考查动词不定式用法。be surprised to 后面要用动词原形,故选come across。句意:无意中在这个可怕的储物柜中发现了奇怪的头骨,这让我很吃惊。come across 无意中发现;偶遇。