Verb+preposition

Question 1

Merge:
to (…), or to (…) things together to form one thing
[The bank announced that it was to merge (…) another of the high street banks.

Answer 1

combine, join
with

Question 2

Choke
He choked (…) a piece of bread.
to be (…) to (…) properly because (…) is in your (…) or there is (…)enough (…)

Answer 2

on (con)
unable
breathe
something
throat
not
air