Fill in the table with the missing words. Consult the dictionary if necessary:
Fill in the gaps with the right form of the words in BOLD
Put the following phrases under the correct heading in the box.
belief
inquiry
prove
staff
patent
proof
facility
establish
improve
merge
device
believe
create
tour
devise
range
ambition
book
storage
reward
receive
image
gain
expand
machine
noun
both
verb