--- What do you think of Andrew? --- There are some things that are not easy to ______, and his coldness is one.
He is very ______, so he can make up many interesting stories.
The singer sang the song ______ for her mother.
______ is no wonder that people say that computers are ______ the world.
She spent an ______ one week to finish the paper.
His wife gave a sigh of ______ when she knew he was alive.