Which words in the sentence are the prepositional phrase?

My sister moved into an apartment, but I live here.

A.
sister moved

B.
but I

C.
into an apartment

D.
live here
Which words in the sentence are the prepositional phrase?

I could not find an envelope in the drawer.

A.
in the drawer

B.
envelope in the drawer

C.
could find

D.
could not find

Which words in the sentence are the prepositional phrase?

We could not locate any lost library books in our house.

A.
could not locate

B.
any library books

C.
in our house

D.
could locate books