Complete the sentences with the verb "look" and prepositions to convey the meaning of the given words.

1. "Look up" - direct your gaze and search for information or a word in a dictionary or reference book.
Example sentence: I need to look up the definition of this word in the dictionary.

2. "Look out" - be cautious and watch carefully for any possible danger.
Example sentence: Look out for cars before crossing the street.

3. "Look after" - take care of or be responsible for someone or something.
Example sentence: My sister looks after our dog when we go on vacation.

4. "Look forward to" - anticipate and feel excited about something that is going to happen.
Example sentence: I look forward to spending the weekend at the beach.

5. "Look into" - investigate or examine something in order to gather information or understand it better.
Example sentence: The police will look into the case to find out who is responsible.

6. "Look down on" - regard someone or something as inferior or less important.
Example sentence: It is not right to look down on others because of their social status.

7. "Look through" - quickly read or glance at something, such as a document or a book.
Example sentence: I need to look through my notes before the exam.

8. "Look for" - search or seek something or someone.
Example sentence: I am looking for my keys. Have you seen them?

9. "Look back on" - reflect on or remember past events or experiences.
Example sentence: As I look back on my childhood, I realize how fortunate I was.

10. "Look up to" - admire and respect someone.
Example sentence: Many young children look up to their parents as role models.