Use the appropriate words to complete the sentences.
It is not ………..to swim in the river when the water is so cold.
challenging
reasonable
I would like to write a ………to Mrs Morrison.
notice
note
Dick and Richard look alike but they are ………people.
various
different
This difficult riddle is a ………for us.
rebellion
challenge
Do you think teenage rebellions ………..their parents are typical?
about
against
This is a ……….slow train.
quite
pretty
