Why ... ? To + infinitive

• In conversation, we can answer the question Why? with an incomplete sentence begining with to .
• We usually don't repeat to when we give more than one perpose.

EXAMPLES:
Why did you go to the mall?
To buy a new camera phone.
I went to the mall to buy a sweater, eat lunch and see a movie.

2.We can use long form in order to

EXAMPLES:
I bought my first camera phone in order to send instant photos.