He has never dreamed of _____a chance to study abroad.

问题描述:

He has never dreamed of _____a chance to study abroad.
A being B there be C there being D there to be
为什么选C不选A

选C 意思是:他从来没想过会有机会出国留学
dream of doing sth.是一个句型
但这里的be不是动词,所以不能用这个句型,否则句子就不通了.