—Instead of lending a hand, Jim just stood by, laughing at us in trouble. —Oh, it’s _________ of him to be so cold-hearted.
. The police were ___ the prisoner to see if he had a gun.
It’s bad manners to call ___.
It is _____ he often fails in exams ____ makes his parents worried about him.
What surprised me was not what he said but ____ he said it.
. The most of his time is ____ to prepare for the college entrance examination.