Выберите соответствующую форму инфинитива.
1. I am sorry not (warn, to have warned) you. 2. Her little child likes (tell, to be told) funny stories. 3. Who was the last (enter, to enter) the room? 4. She is always pleasant (look at, to look at). 5. All were shocked (find out, to find out) about her behavior.