----You _______ part in the party in time. ----Sorry I was delayed by the accident.
Being afraid of making mistakes, the little boy __________ answer his teacher's questions.
The president was so absorbed in his work that not a sound __________.
She is a bit shy and __________ stand up and answer the teacher's questions.
The little girl __________ go out alone at night.
An unhappy childhood may have some negative effects on a person's character; however, they are not always __________.