PROMISE
LEND
RESEARCH
BORROW
PLUMBER
SWAP
ETERNAL
WHOLE
HURT
EXIST
to give something to someone and get something in return, to exchange
serious study of a subject, in order to discover new facts or test new ideas
to cause or feel pain in part of your body
a statement that you will definitely do something or that something will definitely happen
all of something
to be real or alive
someone whose job is to repair water pipes, baths, toilets
to use something that belongs to someone else and that you must give back to them later
continuing for ever and having no end
to give someone money or something that belongs to you for a short time
