They look happily at the photos taken on the beach.用happy还是happily?
问题描述：
They look happily at the photos taken on the beach.用happy还是happily?
答
应该是happily.因为这里的主要动词是look at,taken on the beach是过去分词作定语.副词才能修饰动词,所以是happily.
如果是要表达“看上去很开心”,则是they look happy.
但是look at是“看.”