Phrasal verb: to turn into

[Stone]

English Language Tests, Intermediate level

ESL/EFL Test #32 "Story (1)", question 7

It had been a very large private house that had been turned ......... a small hotel for twenty-five guests.

(a) out
(b) down
(c) into
(d) to

English Language Tests, Intermediate level

ESL/EFL Test #32 "Story (1)", answer 7

It had been a very large private house that had been turned into a small hotel for twenty-five guests.

Correct answer: (c) into

Your answer was: incorrect
It had been a very large private house that had been turned to a small hotel for twenty-five guests.
_________________________

What does it mean

Stone

[Mister Micawber]

.
Turn into = convert.

It used to be an big, old house, but it was reconstructed and redesigned so that it could be a small hotel.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber

[Guest]

[Guest]

[Mister Micawber]

.
It had been a very large private house , but it was turned into a small hotel for twenty-five guests.
It used to be a very large private house, but it was turned into a small hotel for twenty-five guests.

Here, either works, but the two forms are not really related. Used to be just indicates former condition:

I used to be a college student.

Past perfect is used to distinguish the earlier of two past events when that time relationship is not already clear:

I had been a college student for two years when I finally received my first A grade.
.
_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber