it is much more __comfortable___(comfort)to travel by plane than by ship .
the car accident happened.it was because he drove the car___carelessly_(careless)
she had done something wrong and told us she was__truly__（true)sorry about it
many of his answers are__incorrect__(correst),so the teacher asked him to do the exercises again.
can you tell me the time of her___arrival__( arrive)
after a long __discussion__(discuss), they made a final___decision__(decide)