the kids are looking forward to spending\having spent their holiday in incalfornia

问题描述:

the kids are looking forward to spending\having spent their holiday in incalfornia

应该填 spending
这是固定搭配:look forward to doing sth 盼望做某事having spent为啥不行句子意思是:孩子们正盼望着在加利福尼亚度假。用having spent 是现在完成时,意思是不通顺。