1.The teacher is walking into the classroom
主语:The teacher
谓语:is walking
状语:into the classroom
2.That girl is very clever.
主语:That girl 谓语:is very clever
3.The dictionary is my birthday present.
主语:The dictionary 谓语:is my birthday present
4.It is impossible to finish the work in half an hour.
主语:It(形式主语）to finish the work in half an hour（真正主语）谓语:is impossible
5.He seemed very happy that day.
主语:He 谓语:seemed very happy 状语:that day
6.It sounds very interesting.
主语:It 谓语:sounds very interesting
7.She works in a hospital.
主语:She 谓语:works 状语:in a hospital
8.She knows a little English.
主语:She 谓语:knows 宾语:a little English
9.There are two students in the classroom.
主语:two students 谓语:There are 状语:in the classroom
10.We enjoy playing football.
主语:We 谓语:enjoy 宾语:playing football