题目内容：

She looked forward to the letter which /that came at last.的主语是什么?

优质解答

She

追问：

We look forward to seeing you again 和 I look forward to coming to work every day.他们的主语和谓语分别是什么？麻烦啦

追答：

we是主语 look forward to是短语动词作谓语，其中look是动词，forward是副词，to是介词 I是主语 look forward to是短语动词作谓语，其中look是动词，forward是副词，to是介词