Question

9. He felt very excited for        the only real vase among the false ones,which looked exactly the same in appearance. (pick )

因为幸运地从那些赝品花瓶中挑出唯一的一个真品，他感到很兴奋。

Answer 1

9. being fortunate in picking out考查fortunate和动名词作介词宾语的用法。be fortunate in doing sth. 在(做某事)方面很幸运。He felt very excited的原因是"幸运地从那些赝品花瓶中挑出唯一的一个真品"，所以，所缺部分应为介词for后的宾语。而介词后的动词只能接动名词。