Turning into and turning in

[Logician]

Test No. incompl/inter-33 "Story (2)", question 2

They were so successful that they were even turning ......... bookings.

(a) away
(b) into
(c) in
(d) down

Test No. incompl/inter-33 "Story (2)", answer 2

They were so successful that they were even turning down bookings.

Correct answer: (d) down

Hello! I want to ask you: How to differ 'turning into' and 'turning in'
Many thanks
Logician

[Torsten]

Hi Logician,

Please look at these examples:

Go straight down this street and at the next corner turn into Baker street.
Also, something can turn into another thing or you turn them into it, that means, they change and become that thing.
For example:
The story had been turned into a movie.

When you turn you go to bed. You can also turn somebody in, that means you take them to the police.

TOEIC listening, photographs: People shopping

[Logician]

When you turn you go to bed. You can also turn somebody in, that means you take them to the police.[/quote]
I don't understand ; When you turn you go to bed
Many thanks
logician

[Torsten]

When you turn in you go to bed, when you turn somebody in you take them to the police.

TOEIC listening, photographs: A large pipeline

[Logician]

[Torsten]

OK, you can say:
I'm going to bed now.
Or:
I'm turning in now.

You can say:
I'll take you to the police because you were trying to steel my car.
Or:
I'll turn you in because you were trying to steel my car.

TOEIC listening, photographs: Impressive column

[Logician]

You can say:
I'll take you to the police because you were trying to steel my car.
Or:
I'll turn you in because you were trying to steel my car.

Now I got it .
Thank you very much.
Logician

[Nabilchamlal]

To turn in on oneself is another example.