They were happy to be with each other 中的语法或者固定搭配是什么?

They were happy to be with each other 中的语法或者固定搭配是什么? they were happy to be with each other on the ship called the they were happy to be with each other on the ship (which was they were happy to see each other.(感叹句） 英语：We are very happy to be with each other.这句话中的to Now they are very happy to be ( ) each other. They were ----busy -----with each other----the time Atoo,to They are happy to see each other How happy they were _____ each other!A to see B seeing The two friends were so happy to see each other that they fo To Be In Love With Each Other talking ,politely,l,arrived,when,they,were,with,each,other